Buffer System
Gas & Brass Armory stocks high-quality AR-15 buffer systems to ensure proper function and recoil management in your rifle build. Located in Brandon, FL, we offer complete buffer kits, individual buffer tubes, springs, and weights from trusted brands like Aero Precision, BCM, Geissele, and more. Whether you're building a carbine, mid-length, or pistol setup, our selection includes mil-spec and commercial options for a reliable and smooth shooting experience.
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LBE AR MILSPEC BUFFER TUBE KIT BRN
LBE Unlimited
MSRP: $61.57$43.98This LBE Buffer Tube Kit includes a six position mil-spec diameter buffer tube, carbine length recoil spring, standard carbine recoil buffer, receiver end plate, and castle nut. LBE Unlimited is a leading producer of US Made gun parts and accessories...MSRP: $61.57$43.98 -
LBE AR MILSPEC BUFFER TUBE KIT RED
LBE Unlimited
MSRP: $60.96$43.54This LBE Buffer Tube Kit includes a six position mil-spec diameter buffer tube, carbine length recoil spring, standard carbine recoil buffer, receiver end plate, and castle nut. LBE Unlimited is a leading producer of US Made gun parts and accessories...MSRP: $60.96$43.54 -
LBE AR PISTOL BUFFER TUBE KIT BLK
LBE Unlimited
MSRP: $60.96$43.54The LBE AR-15 pistol buffer tube receiver extension comes with no provision to mount a buttstock, allowing your pistol build to remain legally compliant. It features a foam end cap that covers the tail of the buffer tube for use in attaining a more...MSRP: $60.96$43.54 -
LBE AR MILSPEC BUFFER TUBE RED
LBE Unlimited
MSRP: $33.96$24.26The Six Position LBE Mil-Spec Spec Diameter Buffer Tube fits all collapsible AR-15 stocks that require mil-spec tubes. This item is perfect for your current build or your spare parts bin. LBE Unlimited is a leading producer of US Made gun parts and...MSRP: $33.96$24.26 -
KYNSHOT SPACER WEIGHT SLV
KynSHOT
MSRP: $30.24$18.33The KynSHOT Spacer Weight was designed in cooperation with Blitzkrieg Components and can be used with PCC hydraulic buffers, and AR hydraulic buffers to add mass in front of the buffer. The Spacer Weight also adds .75" in length to the buffer system, and...MSRP: $30.24$18.33 -
KAK BUFF TB KIT AR CARB 3OZ
KAK Industry
MSRP: $58.79$41.99KAK Industry Mil-Spec Carbine Buffer Tube kit- Receiver ExtensionMANUFACTURER: KAK IndustryMPN: AR15-KT-003MODEL: AR-15 CarbineDescription: Buffer Tube KitFinish: AnodizedType: Buffer Tube Complete AssemblyColor: BlackMSRP: $58.79$41.99 -
KAK AR15 BUFFER TUBE M16 A5 CARBINE
KAK Industry
MSRP: $50.39$35.99For AR-15 builds the A5 Style Buffer Tube is only compatible with A5 Style Buffers and Rifle Length AR-15 buffer springs, do not use standard buffers with the A5 tube for AR-15 buildsMANUFACTURER: KAK IndustryMPN: 515-0604-001MODEL: A5 StyleDescription:...MSRP: $50.39$35.99 -
CMMG RECEIVER EXT KIT CARBINE AR15
CMMG
MSRP: $77.06$55.04When you are thinking about building a new AR-15 rifle or completing that lower you have had sitting around this CMMG AR-15 Carbine Receiver Extension Kit 6-position Mil-Spec is the perfect one. This kit contains an AR-15 carbine receiver extension, end...MSRP: $77.06$55.04 -
CMMG BUFFER ASSEMBLY CARB MK3
CMMG
MSRP: $53.12$37.94CMMG'S 308 AR Carbine Buffer Assembly can be used in conjunction with the CMMG 308 carbine buffer spring in AR-15 buffer tubes. Compatible with LR-308 Mk3 and AR-10's. All CMMG parts are made in the United States from the best materials available. CMMG...MSRP: $53.12$37.94 -
Out of stock
CMMG BUFFER ASSEMBLY CARB MK9
CMMG
MSRP: $33.29$23.78The CMMG MK9 AR-15 9mm Carbine Buffer is a replacement buffer for AR-15's/M4's that are chambered in 9mm luger using a carbine receiver extension.MANUFACTURER: CMMGMPN: 90CA9B4MODEL: 0Fit: AR RiflesType: BufferColor: BlackMSRP: $33.29$23.78 -
CMMG AR-15 BUFFER ASSEMBLY
CMMG
MSRP: $28.32$20.23CMMG manufactures high quality parts and accessories for the AR-15 platform. This CMMG AR-15 Buffer Assembly is a replacement buffer for AR-15's/M4's that are using a carbine receiver extension.MANUFACTURER: CMMGMPN: 55CA977MODEL: 0Description: Buffer is...MSRP: $28.32$20.23 -
BCM STOCK HARDWARE MOUNT KIT MILSPEC
Bravo Company
MSRP: $81.13$57.95Bravo Company's BCM Mil-Spec Carbine Stock Hardware Mounting Kit for AR-15's contains all the necessary parts to mount your Mil-Spec dimension stock assembly to your lower receiver- Receiver Extension (Mil-Spec, 6 position), Receiver End Plate, Castle...MSRP: $81.13$57.95