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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KYNSHOT BUFFER AR10 308 FIXED STOCK
KynSHOT
MSRP: $160.29$115.00The KynSHOT RB5006 Recoil Buffer is a hydraulic buffer system designed and optimized to fit any AR-10 using a Mil-Spec style rifle length A1 or A2 fixed stock buffer tube (internal depth 9.5"). The RB5006 can be paired with any style rifle buffer...MSRP: $160.29$115.00 -
KYNSHOT BUFF 308 STD CLPS STK 3.25
KynSHOT
MSRP: $151.24$109.00The KynSHOT RB5005 Recoil Buffer is a hydraulic buffer system designed and optimized to fit any AR-10 using an AR-10 length/A5 buffer tube (internal depth 7.75"). The RB5005 can be paired with any style AR-10 buffer spring, and is a simple drop-in...MSRP: $151.24$109.00 -
KYNSHOT BUFF 308 SHRTY CLPS STK 2.5
KynSHOT
MSRP: $147.60$106.00The KynSHOT RB5004 Recoil Buffer is a hydraulic buffer system designed and optimized to fit any AR-10 using a Mil-Spec style carbine buffer tube (internal depth 7"). The RB5004 can be paired with any style AR-10 buffer spring, and is a simple drop-in...MSRP: $147.60$106.00 -
KYNSHOT BUFFER FOR FIXED STOCK AR-15
KynSHOT
MSRP: $170.25$122.00The KynSHOT RB5001 Recoil Buffer is a hydraulic buffer system designed and optimized to fit any AR-15 using a Mil-Spec style rifle length A1 or A2 fixed stock buffer tube (internal depth 9.5"). The RB5001 can be paired with any style rifle buffer spring,...MSRP: $170.25$122.00 -
KYNSHOT BUFFER FOR AR-15 CARB STOCKS
KynSHOT
MSRP: $139.45$100.00The KynSHOT RB5000 Recoil Buffer is a hydraulic buffer system designed and optimized to fit any AR-15 using a Mil-Spec style carbine buffer tube (internal depth 7"). The RB5000 can be paired with any style buffer spring, and is a simple drop-in...MSRP: $139.45$100.00 -
KAK BUFF TB KIT AR CARB 3OZ
KAK Industry
MSRP: $58.79$42.00KAK 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$42.00 -
KAK BUFF/SPRNG KIT AR15 K-SPEC 4.7OZ
KAK Industry
MSRP: $54.59$45.00The K-SPEC Buffer was developed with specific goals in mind- Reducing felt recoil and providing faster follow up shots. With modern technology being applied to firearms, you're likely aware of the recoil management solutions that have been applied to...MSRP: $54.59$45.00 -
GEISSELE SPR 42 BRD WIRE BFR/SPR CMB
Geissele Automatics
MSRP: $102.82$74.00The Geissele Super 42 Buffer Spring/Buffer Combo was designed to improve the function and reliability of your AR-15 pattern rifle. Its unique spring design uses three independent strands of wire. This concept acts as a harmonic damper and energy absorber...MSRP: $102.82$74.00 -
GEISSELE SPR 42 BRD WIRE BFR/SPR H3
Geissele Automatics
MSRP: $151.37$109.00The Geissele Super 42 Buffer Spring/Buffer Combo was designed to improve the function and reliability of your AR-15 pattern rifle. Its unique spring design uses three independent strands of wire. This concept acts as a harmonic damper and energy absorber...MSRP: $151.37$109.00 -
GEISSELE SPR 42 BRD WIRE BFR/SPR H2
Geissele Automatics
MSRP: $127.09$91.00The Geissele Super 42 Buffer Spring/Buffer Combo was designed to improve the function and reliability of your AR-15 pattern rifle. Its unique spring design uses three independent strands of wire. This concept acts as a harmonic damper and energy absorber...MSRP: $127.09$91.00 -
CMMG RECEIVER EXT KIT CARBINE AR15
CMMG
MSRP: $77.06$54.00When 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$54.00 -
CMMG BUFFER ASSEMBLY CARB MK3
CMMG
MSRP: $53.12$38.00CMMG'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$38.00