Bcm lower mk2.

About the BCM® Mk 12 Complete Upper Receiver, Mod 4X-Bravo (KMR-A15) Features included in basic price: BCM® KMR Alpha 15" ... Plopped it on a S&W lower I had lying around, added a Magpul fixed MOE rifle stock, a Geissele SD-E trigger, a bipod, and a Vortex Viper PST 2.5-10x32 scope, and was grouping 223 Winchester …BCM® MK2 Upper Receiver Groups; ... BCM. BCM® AR-15 Enhanced Lower Parts Kit - Black. MSRP: $130.00 Your Price: $119.95. In Stock. Quick view Add to Cart. BCM.BCM Lower Group w/MK2RMS-M1T0 & BCMGUNFIGHTER Stock Mod-0-SOPMOD (Wide-body) - Flat Dark Earth - Utilizes the BCM MK2 Receiver Extension, MK2 buffer, and rifle M16 action spring. The MK2 receiver extension is approximately 3/4'' longer than the standard 6 position extension.Baylor College of Medicine Medical Center - McNair Campus. 7200 Cambridge St. Houston, TX 77030. United States. Phone: (713) 798-7820. Adult Genetics Clinic.AR-15 Misc Lower Parts. Read More expand_more Read Less expand_less Sort By: Quick view Add to Cart. BCM *Cosmetic Blem* BCM® MK2 Receiver Extension ... BCM. BCM MK2 Recoil Mitigation System - Mod 1 - T2. MSRP: $138.00 Your Price: $123.95. Out Of Stock. Quick view Add to Cart. Carbine Buffer. $11.00.

Description. Designed to reduce muzzle rise, noise, and lateral pressure. The BCM®™ Compensator Mod 0-5.56. Tuned slots and interior cone offer recoil mitigation and compensation of muzzle-rise. Designed to have less side blast and noise associated with typical compensators. Nitride treated for maximum corrosion resistance.Quick View. AR15 Upper Receiver Groups. BCM® MK2 SS410 18″ Rifle Upper Receiver Group w/ MCMR-15 Handguard 1/8 Twist. $ 979.99 $ 792.99. Sale! Quick View. AR15 Upper Receiver Groups. BCM® MK2 BFH 16″ Mid Length (ENHANCED Light Weight) Upper Receiver Group w/ KMR-A15 Handguard. $ 996.55 $ 792.99.Upper Receiver: MK2. Barrel Profile: Enhanced Light-Weight. BCM® Bolt Carrier Group: None BCM® Bolt Carrier Group (MPI) (Auto) (included FREE w/ Upper Receiver Group, Special Limited Time Offer) BCM® Charging Handle: None Ambi MK2 Handle (LARGE) +$89.95 Ambi MK2 Handle (MEDIUM) +$89.95 Asym MK2 Handle (LARGE) +$74.95 Asym MK2 Handle (MEDIUM ...

AR-15 Lower Parts . All AR-15 Lower Parts; AR15 Lower Parts Kits; Tactical Triggers; Trigger Guards; AR15 Misc Lower Parts; Stocks and Grips . All Stocks and Grips; Stocks . ... BCM. BCM® MK2 Standard 14.5" Mid Length (Enhanced MEDIUM Weight-*FLUTED*) Complete Upper Receiver Group w/ MCMR-13 Handguard. MSRP: $1,017.39

INCLUDES: BCM Stock Mod 2 - Black. BCM MK2 Receiver Extension (approximately 3/4" longer than carbine), 7076T6, 8 position, Mil-Spec diameter. Mil-Spec M16A4 Rifle Action Spring. BCM MK2 Mod 1 - T0 Buffer (weight = approximately 3.8oz) BCM EPM4 End Plate (include mount for QD swivel) Locking Nut (Castle Nut) M4. FIT LIKE A GLOVE.The BCM MK2 Mod1 T0 AR15 buffer (3.8oz) is built for the BCM MK2 receiver extension to reduce felt recoil and provide consistent carrier velocity. ... AR-15 Lower Parts. Gunfighting Links American Gunfighter Films Gunfighters. BCM MK2 Buffer Mod 1 - T0 BCM. MSRP: $39.90 Your Price: $35.95 (You save $3 ...Mexico City is in the midst of a dire water crisis. Uncovering ancient lava may be the answer Pedro Camarena was standing inside a hole in the ground big enough to bury his full-si...That being said, as long as you aren't using a MARS lower, there's no downside to the MK2 upper. I think the biggest upside is potentially less gas-to-face if you're using a suppressor. Even if not, all else being equal, my next BCM upper purchase (pinned 14.5") will be with a MK2 upper. Mainly because of the repositioned forward assist. 3. Reply.BCM ® 300 BLK Recce 9 ... BCM ® LOWER RECEIVER. Receiver Machined from Aluminum Forgings 7075-T6, Hardcoat Anodized (per MIL-A-8625F, Type III, Class 2) Low Shelf for RDIAS Installation - Installation of a registered drop-in auto sear allows weapon to fire on full automatic. Low Shelf for Accuwedge use.

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BCM® MK2 Upper Receiver Groups; Cosmetic Blem Upper Groups; 20" Rifle Upper Group; 18" SPR Mk 12 Upper Half; 18" Rifle Upper Group; 16" M4 Carbine Upper Group; 16" Mid Length Upper Group; 16" Recce Upper Groups (Mid Length) 14.5" Mid Length Upper Group; 14.5" M4 Carbine Upper Group; 12.5" Carbine Upper Group; 11.5" Carbine Upper Group; 7", 9 ...

BCM Gunfighter's Grip, Mod 3. Low Shelf for RDIAS installation. Low Shelf for Accuwedge use. Fire Controls marked SAFE and SEMI. Buffer Kit: Lessens felt recoil, without compromising reliability. Provides a more consistent carrier velocity, which can aid in accuracy, reliability over conventional carbine buffer system.I would go BCM MK2 or PWS MK1. Even though I have beef with John Sharps right now, take a look at Sharps Bros SBUR03. The bolt catch cut may be just perfect for the ADM’s catch and the front of the upper is flush with SLR rails for a seamless upper/rail transition. ... Hell the only reason I went to ADM lower was simply due to the bolt hold ...BCM Complete MK2 Lower Receiver Group with BCM MOD 0 Stock (FDE) Machined from Aluminum Forgings 7075-T6; Hardcoat Anodizing: MIL-A-8625F, Type III, Class 2; BCM Milspec 7075-T6 Receiver Extention; Staked M4 Lock Nut; USGI H Buffer (1 USGI Tungsten, 2 Steel) BCM Trigger Guard; BCM PNT Trigger; BCM Gunfighter's Grip, Mod 3; Low Shelf for RDIAS ...Upper: BCM Mk2 16" BFH ELW upper Light setup: Modlite PLHv2 + Surefire DS00, SR07 Optic: T2 + G33 Lower: Radian AX556 ADAC Lower + Talon Trigger: Geissele SD3G Buffer setup: VLTOR A5 Stock: B5 SOPMOD Enhanced Misc: FCD Rail panel + FA, Geissele SCH, Emissary Handbrake, Surefire 3 prong Pistol: Glock 17 ...BCM MK2 BFH 14.5" mid length Enhanced Light weight upper. Posted by Jim M on Aug 23rd 2020 Outstanding quality, with perfect machining. Excellent fit up with my lower, nice and tight pin alignment. Barrel feed ramps are perfectly aligned as well as the hand guard. ... I paired this upper with my aero lower and it is a perfect fit. I ordered ...BCM-MK2-RE. Availability: In stock. Delivery time: 3-5 Days. Our BCM MK2 Receiver Extension for your AR15, M16, M4. Machined from 7075T6 and manufactured to Mil-Spec dimensions and specifications. Mil-Spec receiver extensions have a slightly smaller dimension where the stock slides on. Hard Coat Anodized per Mil-A-8625F, Type III, Class 2.Key Features VFC AR Series GBBR Improved Lower Receiver Internal Structure & New Firing Pin Design AR Redesign of the internal groove of the AR series GBBR lower receiver. The number of parts of the firing pin parts is less than that of the old version, and it is easier to maintain. ... SKU: VFC-BCM-MK2-2T-145 VFC BCM MK2 MCMR 14.5" V3 …

BCM ® LOWER RECEIVER. Receiver Machined from Aluminum Forgings 7075-T6, Hardcoat Anodized (per MIL-A-8625F, Type III, Class 2) Low Shelf for RDIAS Installation - Installation of a registered drop-in auto sear allows weapon to fire on full automatic. Low Shelf for Accuwedge use. Fire Controls Marked SAFE and SEMI. BCM ® Milspec 7075-T6 ...One resides on a BCM lower, other is on a PSA. Honestly the PSA had the better trigger, however both ended up getting replaced with Geissele's. I cannot tell the difference besides the roll marks. Save your $ on the lower and spend the savings on ammo, optic, light, or a better trigger. Posted: 8/2/2020 12:03:37 PM EDT.AR-15 Lower Parts . All AR-15 Lower Parts; AR15 Lower Parts Kits; Tactical Triggers; Trigger Guards; AR15 Misc Lower Parts; Stocks and Grips . All Stocks and Grips; Stocks . ... BCM. BCM® MK2 Standard 16" Mid Length (ENHANCED Light Weight-*FLUTED*) Complete Upper Receiver Group w/ MCMR-13 Handguard. MSRP: $1,017.39Bravo Company Usa Bcmgunfighter Ar-15 Enhanced Lower Parts Kit ELPK-BLK 812526020444. ... BCM MK2 BUFFER MOD1 T1. $46.50 $37.74. Add to cart Add to compare list Add ...BCM Corporation is a global health care marketing and manufacturing organization. We are dedicated to delivering products and services to our customers in the most timely and cost- efficient manner. Description. ***COSMETIC BLEM*** (Scratches or scuffs) Packaged in Bulk. Our BCM MK2 Receiver Extension for your AR15, M16, M4. Machined from 7075T6 and manufactured to Mil-Spec dimensions and specifications. Mil-Spec receiver extensions have a slightly smaller dimension where the stock slides on. 16in. Barrel Style: BFH. Handguard: MCMR-15. Upper Receiver: MK2. BCM® Bolt Carrier Group: None BCM® Bolt Carrier Group (MPI) (Auto) (included FREE w/ Upper Receiver Group, Special Limited Time Offer) BCM® Charging Handle: None Ambi MK2 Handle (LARGE) +$89.95 Ambi MK2 Handle (MEDIUM) +$89.95 Asym MK2 Handle (LARGE) +$74.95 Asym MK2 Handle ...

BCM Lower Group w/MK2RMS-M1T0 & BCMGUNFIGHTER Stock Mod-0-SOPMOD (Wide-body) - Flat Dark Earth - Utilizes the BCM MK2 Receiver Extension, MK2 buffer, and rifle M16 action spring. The MK2 receiver extension is approximately 3/4'' longer than the standard 6 position extension.Receivers Machined from Aluminum Forgings 7075-T6 Receivers Hardcoat ...DISSIDENT™ Mk2 Complete Lower. 0 Review (s) Write a Review. Your Price: $649.00. Ambidextrous functionality ready to pair with your existing upper receiver. Part Number: L-DIS. Availability: Built to Order. You need to be a registered customer to order this product.

Bravo Company MFG (BCM) AR-15 Enhanced Lower Parts Kit. $119.95. Add to Cart. Add to Wish List Add to Compare. Skip to the end of the images gallery. Skip to the beginning of the images gallery. Details. BCM ® Enhanced Lower Parts Kit for your AR15 Lower Receiver. This kit includes all the Mil-Spec quality components you have come to expect ...The BCM10/2 MkII uses voltage mixing across its mix busses; this classic architecture reduces the mix bus gain to be reamplified through the 1272's to line level. This process creates a 'pleasant analogue hue compared to modern, transparent, current mixing and forms part of the BCM's unique sonic character.BCM® MK2 Upper Receiver Groups; Cosmetic Blem Upper Groups; 20" Rifle Upper Group; 18" SPR Mk 12 Upper Half; 18" Rifle Upper Group; ... Of ciurse it should be I have 5 bcm's. Love it got a complete lower. Retired LE and current FFl dealer and this is the rifle I recomend to all my customers. 5 Top Quality.About the BCM® MK2 BFH 14.5" Mid Length Complete Upper Receiver w/ MCMR-13 Handguard. All BCM® Upper Receiver Groups with a MCMR Handguard Include: ... Haven't shot it yet but it mates perfectly to my Aero lower. Will update after 500 rounds. 5 Top Notch Quality and Service . Posted by AC on Aug 26th 2020When it comes to building an AR-15, the lower receiver is a crucial component. After extensive research, I decided to invest in the Bravo Company Manufacturing Complete AR-15 Lower Receiver with MK2 & Mod-1 SOPMOD Stock. In this review, I will discuss the features, performance, and overall value of this product. Let's dive in! FeaturesUpgrade your next build with the full-ambi MK2 lower receiver for a superior rifle foundation. Lower Receiver Manual ... aside, I really like the trigger guard, specifically the straight portion to the rear, as it allows the shelf on the BCM pistol grip I'd decided on using. One thing I'd like to see is the use of pictograms instead ...

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Featuring BCM's Patent Pending MK2 Upper Receiver. This proprietary design offers enhanced rigidity over the USGI product. The increased rigidity limits barrel deflection which aids in consistency/accuracy. Less flex also reduces premature damage, wear, and failure of bolt lugs from misalignment. A gas expansion chamber is machined above the ...

Details. Complete Bravo Company Manufacturing AR-15 lower receiver with BCM MK2 Recoil Mitigation System – Mod 1 – T0 and Mod 0 Gunfighter stock. The BCM MK2 Mod …BCM US Patent #10415907. Items in the Mitigation System: MK2 Buffer available in 3.8, 4.7 or 5.6 ounces. Mil-Spec M16A4 rifle action spring. Mk2 Receiver Extension (approximately 3/4” longer than carbine), 7076T6, 8 position, Mil-Spec diameter. Lock Nut (Castle) M4. Receiver QD End Plate (include mount for QD swivel)Depends on what the right side bolt release looks like, the forward assist on the Mk2 uppers is further forward, so if the paddle for the bolt release sticks up you’ll have clearance issues. I don’t have any firsthand experience with a PWS lower, but I do have a Mk2 on a Radian ambi lower with no fitment issues. It’s completely flush with ...Description. Lower Receiver: PWS ambidextrous MK1 MOD 2-M Multi-Caliber Lower T6 7075 Forged Anodized AR-15 Compatible - Trigger: Mil-Spec Enhanced PTFE Coated. - Trigger Pull Weight: 5.5-6.5 lbs. - Buffer Tube: PWS Enhanced Buffer Tube with ratchet lock castle nut and end plate set with built-in QD mount - Buffer: PWS Enhanced H2 Steel Body ...14.5in. Barrel Style: BFH. Handguard: MCMR-13. BCM® Bolt Carrier Group: None BCM® Bolt Carrier Group (MPI) (Auto) (included FREE w/ Upper Receiver Group, Special Limited Time Offer) BCM® Charging Handle: None Ambi MK2 Handle (LARGE) +$89.95 Ambi MK2 Handle (MEDIUM) +$89.95 Asym MK2 Handle (LARGE) +$74.95 …This is a BRAND NEW BCM AR15 Lower. Comes with everything shown in the pic (GF MOD3 Grip, BCM PNT FCG, BCM's QD plate & BCM SOPMOD Stock). This lowers feature their new MK2 Recoil Mitigation System.The popular BCM® Mod 4 Pistol Grip comes standard on the lower receiver. A BCMGUNFIGHTER™ Stock is available in your choice of Black and Flat Dark Earth on a Mil-Spec receiver extension which also includes a BCM® QD Endplate and staked castle nut. BCMGUNFIGHTER™ Stock Mod-0 SOPMOD in Black or Flat Dark Earth; Machined Aluminum Forgings ...Bravo Company USA, Inc., PO Box 341. Hartland, WI 53029-0341. Email: [email protected] Please Email Us Here. Fax: 262 - 367- 0989. *We do not accept fax or mail in orders*. The founding fathers made the right to keep and bear arms second only to the freedom of speech in the Bill of Rights. Thomas Jefferson, John Adams, George Mason, Samuel ...About the BCM® Mk 12 Complete Upper Receiver, Mod 4X-Bravo (KMR-A15) Features included in basic price: BCM® KMR Alpha 15" BCM® SS410 18" Stainless Barrel, Ionbond Black DLC; Rifle Length Gas System; Pinned Low Profile Gas Block; BCM® Bolt Carrier Group (HPT/MPI), autoBCM-MK2-RE. Availability: In stock. Delivery time: 3-5 Days. Our BCM MK2 Receiver Extension for your AR15, M16, M4. Machined from 7075T6 and manufactured to Mil-Spec dimensions and specifications. Mil-Spec receiver extensions have a slightly smaller dimension where the stock slides on. Hard Coat Anodized per Mil-A-8625F, Type III, Class 2.AR-15 Misc Lower Parts. Read More expand_more Read Less expand_less Sort By: Quick view Add to Cart. BCM *Cosmetic Blem* BCM® MK2 Receiver Extension ... BCM. BCM MK2 Recoil Mitigation System - Mod 1 - T2. MSRP: $138.00 Your Price: $123.95. Out Of Stock. Quick view Add to Cart. Carbine Buffer. $11.00.

BCM US Patent #10415907. This kit contains all the necessary parts to mount to your Mil-Spec dimension stock assembly to your Mil-Spec lower receiver. MK2 Mod 1 - T1 Buffer (weight = approximately 4.7oz) Mil-Spec M16A4 rifle action spring. Mk2 Receiver Extension (approximately 3/4” longer than carbine), 7076T6, 8 position, Mil-Spec diameter. The lower receiver is crafted from forged 7075-T6 aluminum and adorned with BCM Gunfighter upgrades, such as the trigger, triggerguard, grip and stock. An H buffer rests inside the buffer tube. The forged upper contains a midlength 14½-inch barrel with a pinned Mod 1 Compensator, bringing total length to 16.1 inches.Shop a large selection of in stock Bravo Company Lower Receivers manufactured by Bravo Company (BCM). Get 50% off now - Click Here FAST, FREE shipping on Ammo, Parts, and Accessories over $200!Experience shooting versatility with the PWS MK1 MOD 2-M Multi-Caliber Lower Receiver. Crafted from robust 7075-T651 Forged Aluminum and finished with Mil 8625 Type lll Class 2 hard coat anodize, this lower empowers shooters to customize their rifle with ease. Ambidextrous controls, including a Mil-Spec Enhanced Trigger and PWS Enhanced Buffer Tube, ensure intuitive operation for both left and ...Instagram:https://instagram. does chase bank notarize for free Hard Coat Anodized per Mil-A-8625F, Type III, Class 2. These tubes should be used with stocks such as USGI, BCM®™, Colt, LMT, SOPMOD, VLTOR, Stag Arms, and others that a made to the Mil-Spec size. THESE RECEIVER EXTENSIONS CAN ALSO BE USED ON MOST AR-10s. *NOTE* These buffer tubes require a M16 rifle action spring and specific BCM MK2 buffer ...BCM Lower Receiver Groups are built to the highest standards that includes BCMGUNFIGHTER upgrades like PNT Trigger, Mod 3 Pistol Grip, QD Endplate, and BCM Mod 0 Stock. Receiver machined from Forged Aluminum 7075-T6; Hard Coat Anodized ; Staked M4 Lock Nut; USGI H Buffer; Low Shelf for RDIAS installation; Low Shelf for Accuwedge use goose creek cisd employment Shop a large selection of in stock Bravo Company Lower Receivers manufactured by Bravo Company (BCM). Get 50% off now - Click Here FAST, FREE shipping on Ammo, Parts, and Accessories over $200!I want that upper with the CHF barrel. I also need a Mk2 upper for a precision build. Pretty sure that barrel is .073 which isnt too bad, but i would want smaller for suppressed only use. I have 2 11.5" BCM uppers, both are overgassed. I'm talking about brass ejection at the 1 o'clock while shooting suppressed. rural king fruit trees This kit contains all the necessary parts to mount to your Mil-Spec dimension stock assembly to your Mil-Spec lower receiver. MK2 Mod 1 - T2 Buffer (weight = approximately 5.6oz) Mil-Spec M16A4 rifle action spring. Mk2 Receiver Extension (approximately 3/4" longer than carbine), 7076T6, 8 position, Mil-Spec diameter. Lock Nut (Castle) M4.BCM US Patent #10415907 . This kit contains all the necessary parts to mount to your Mil-Spec dimension stock assembly to your Mil-Spec lower receiver. MK2 Mod 1 - T2 Buffer (weight = approximately 5.6oz) Mil-Spec M16A4 rifle action spring; Mk2 Receiver Extension (approximately 3/4" longer than carbine), 7076T6, 8 position, Mil-Spec diameter carter funeral west plains mo It’s time to finish those lower receiver builds. (Photo: BCM) Internally the BCM MK2 uses standard and MIL-SPEC compatible bolt carrier groups and the upper works with all standard AR-15 lower receivers. Like BCM’s M4 or MK1 receiver, it features all 7075-T6 alloy construction with a hardcoat anodized finish and laser-engraved T-marks.This (Vltor A5 / BCM MK2) recoil system format brings these benefits to the table: 1. You can get rid of the carbine length recoil spring that collapses an inch after a mere few thousand rounds and get the rifle length recoil spring for which the system was originally designed. good morning naughty meme BCM® Stock Mod 2 SOPMOD-Black. Made by Americans in Hartland, WI - the BCM® Mod 2 stock is an improvement over the baseline M4 accessory with enhanced ergonomics, and next-level durability. Recontoured into a patented (United States Patent Number: D901616) semi-clubfoot design, the Mod 2 is fits on Mil-Spec carbine receiver extensions, and ...Your iPhone acts as an entertainment center, music library and personal assistant all rolled into a convenient pocket-sized package. Over time the phone's internal memory can fill ... car accident in laurinburg nc A short video that goes over why I am a big fan of BCM uppers and why I think it would be a good decision to purchase one. We go into the specs about the upp... aspc tucson whetstone unit AR-15 Lower Parts . All AR-15 Lower Parts; AR15 Lower Parts Kits; Tactical Triggers; Trigger Guards; AR15 Misc Lower Parts; Stocks and Grips . All Stocks and Grips; Stocks . ... About the BCM® MK2 Standard 9" 300 BLACKOUT Complete Upper Receiver w/ KMR-A8 Handguard Features: Continuous taper barrel profile designed for optimal weight, balance ...Upper: BCM Mk2 16" BFH ELW upper Light setup: Modlite PLHv2 + Surefire DS00, SR07 Optic: T2 + G33 Lower: Radian AX556 ADAC Lower + Talon Trigger: Geissele SD3G Buffer setup: VLTOR A5 Stock: B5 SOPMOD Enhanced Misc: FCD Rail panel + FA, Geissele SCH, Emissary Handbrake, Surefire 3 prong Pistol: Glock 17 ...BCM AR-15 Enhanced Lower Parts Kit - Black $ 119.95. Remove from Compare Add to Compare. BCM Charging Handle Mk2 Medium Latch For Ar15 $ 75.00. ... BCM MK2 Buffer Mod1 T3 $ 59.95. Remove from Compare Add to Compare. M16 Bolt Carrier Group $ … army oml list 2024 BCM US Patent #10415907. This kit contains all the necessary parts to mount to your Mil-Spec dimension stock assembly to your Mil-Spec lower receiver. MK2 Mod 1 - T2 Buffer (weight = approximately 5.6oz) Mil-Spec M16A4 rifle action spring. Mk2 Receiver Extension (approximately 3/4" longer than carbine), 7076T6, 8 position, Mil-Spec diameter. kellie pickler on the highway BCM US Patent #10415907. Items in the Mitigation System: MK2 Buffer available in 3.8, 4.7 or 5.6 ounces. Mil-Spec M16A4 rifle action spring. Mk2 Receiver Extension (approximately 3/4” longer than carbine), 7076T6, 8 position, Mil-Spec diameter. Lock Nut (Castle) M4. Receiver QD End Plate (include mount for QD swivel) harbor freight telephone I own all 3 brands. 2x BCM SBR uppers, 2x 6920s (one cut down to an SBR now), and 1x Spike's midlength (lower is now SBR'd and married with a BCM upper). All are great shooters and will serve you well. I like the options you are given with BCM (the variety of uppers they provide), and the quality is definitely there. The OEM Colts are a great ... david eskreis md Baylor College of Medicine Medical Center - McNair Campus. 7200 Cambridge St. Houston, TX 77030. United States. Phone: (713) 798-7820. Adult Genetics Clinic.BCM Enhanced Trigger Guard; BCM MK2 RMS (Recoil Mitigation System) BCM Lower Receiver Groups Also Feature: Receivers Machined from Aluminum Forgings 7075-T6; Receivers Hardcoat Anodized per MIL-A-8625F, Type III, Class 2; Staked M4 Lock Nut; MK2 Mod 1 - T0 Buffer; Mil-Spec M16A4 rifle action spring;