Buffer System

Compatible 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...

The RE-1 is VLTOR's mil-spec carbine receiver extension tube. The RE-1 features five stock positions" each of which has a corresponding numeral lasered on the top side of the tube for quick visual indexing. These tubes are made from extremely tough...

The Fortis Standard Castle Nut is manufactured from a solid piece of billet aircraft grade aluminum that offers a significant weight reduction to your castle nut. If you're trying to save ounces, this is a great way, but without sacrificing durability...

This kit comes with everything you need to complete your lower receiver so you can install your collapsible stock. Included is your six position mil spec buffer tube" carbine length recoil spring" carbine length recoil buffer" receiver end plate" and...

The LBE AR15 Carbine Length Recoil Spring is made from high quality 17-7 Steel. Our recoil springs are tough and dependable to ensure your rifle is at its peak performance. LBE Unlimited is a leading producer of US Made gun parts and accessories. LBE...

DBST-ACES's AR-15/M16 A2 Rifle Length Buffer Tube is machined in the USA from 6061 aluminum and this buffer tube fits standard AR-15 and M-16 lower receivers and rifle length buttstocks including the Ace ARFX Skeleton Stock and Ace Ultralite (AR-UL)...

Luth-AR's 308 Mil-Spec Carbine Buffer Tube Assembly Kit includes recoil buffer components for a new .308 AR build or to convert your current AR to a Mil-Spec carbine buffer tube recoil system. For AR-10 Rifles Kit includes Mil-spec carbine tube" .308...

Odin Works, ABS, Adjustable Buffer, Heavy, For AR15, Comes with 3 Aluminum, 3 Stainless Steel, and 1 Tungsten Weights ODIN Works is always looking for new ways to make your build as customizable as possible to fit you, the shooter. This adjustable...

High quality components and precise manufacturing make Lantac parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.

LBE Unlimited is a quality manufacturer of AR-15 parts and accessories. This particular item is an AR-15 Mil-Spec diameter carbine receiver extension. This buffer tube can be used as a replacement unit or as a spare for a new build. This unit come...

LBE Unlimited is a quality manufacturer of AR-15 parts and accessories. This particular item is an AR-15 Mil-Spec diameter carbine receiver extension. This buffer tube can be used as a replacement unit or as a spare for a new build. This unit come...

THE LWRC UCIW (ULTRA-COMPACT INDIVIDUAL WEAPON) STOCK SYSTEM SHORTENS THE OVERALL LENGTH OF THE FIREARM BY A FULL INCH" AS COMPARED TO A STANDARD AR. THE STOCK KIT INCLUDES THE STOCK" RECEIVER EXTENSION" INDEX PLATE" BUFFER" RECOIL SPRING AND CASTLE NUT...