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 ADJ MIL-SPEC SHOTGUN BUFFER
KynSHOT
$230.00The KynSHOT RB5100 Adjustable Damped Shotgun Recoil Buffer features three adjustable damped settings allowing the shooter to tune the buffer to the type of ammunition they are shooting. Positioned on the threaded portion of the cylinder, the buffers...$230.00 -
KYNSHOT BUFFER AR10 308 FIXED STOCK
KynSHOT
$175.00The 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...$175.00 -
KYNSHOT BUFF 308 STD CLPS STK 3.25
KynSHOT
$155.00The 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...$155.00 -
KYNSHOT BUFF 308 SHRTY CLPS STK 2.5
KynSHOT
$155.00The 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...$155.00 -
KYNSHOT BUFFER FOR FIXED STOCK AR-15
KynSHOT
$175.00The 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,...$175.00 -
KYNSHOT BUFFER FOR AR-15 CARB STOCKS
KynSHOT
$150.00The 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...$150.00 -
GEISSELE SPR 42 BRD WIRE BFR/SPR CMB
Geissele Automatics
MSRP: $102.82$75.00The 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$75.00 -
GEISSELE SPR 42 BRD WIRE BFR/SPR H2
Geissele Automatics
MSRP: $127.09$94.00The 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$94.00 -
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 MK9
CMMG
MSRP: $33.29$30.00The 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$30.00 -
CMC AR15 STANDARD BUFFER ASSEMBLY ML
CMC Triggers
MSRP: $79.80$57.00Compatible with Mil-Spec AR-15 stocks this kit contains all the necessary parts to mount a stock assembly onto your lower receiver. Six position AR-15 buffer tube is machined from 7075 T6 aluminum to Mil-Spec dimensions with a Type III Class II hard coat...MSRP: $79.80$57.00 -
CMC AR15 8-POS BUFFER KIT A5 LNGTH
CMC Triggers
MSRP: $138.60$99.00CMC Triggers in-house production also allows for greater flexibility and the ability to respond quickly to market demands. This, in turn, benefits their customers, who can depend on a reliable and consistent supply of high-quality Buffer Tube Kits. The...MSRP: $138.60$99.00