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Ar-15 Receiver Extension Castle Nut Ergo Grips.
Falcon Industries/ERGO brings this receiver extension castle nut for M4 style receiver extension tubes.
Ar6721 Receiver Extention Nut Colt.
FITS: AR-15 Carbine; AR-15 Government Carbine
AR-15, Issue:06, Page:092
AR-15, Issue:06, Page:093
Big Book Catalog, Issue:68, Page:602
Ar-15/m16 Buffer Tube 2 Position Mil-Spec Retro Brownells.
A Period-Correct Component for Your Retro Build
Constructing retro-style AR-15 rifles has become popular in recent years, thanks to an increasing supply of reproduction components. The Brownells 2-Position Mil-Spec AR-15 Buffer Tube offers yet another period-correct component for AR builders looking to reproduce the classic AR-style rifles from yesteryear.
- Features period-correct grey hard-coat finish
- Diameter fits mil-spec buttstocks
- Made from 6160-T6 aluminum
The Brownells 2-Position Mil-Spec AR-15 Buffer Tube is the perfect addition for these classic AR models: XM177E1, XM177, Model 619/620, XM177E2, GAU-5A, Model 639, GAU-5A/A, and Model 653/654.
Ar-15/m16 Mil-Spec Buffer Tube Brownells.
Rugged, Six Position Tube For M4 Type Stocks
Mil-spec receiver extension tube has the correct 1.148" outside diameter to ensure proper fit of adjustable mil-spec carbine stock. Allows you to install a mil-spec stock on a commercial carbine, convert a rifle with a fixed A2 style stock to an adjustable M4 stock, or complete a custom build. Six machined notches on the underside prevent the stock locking pin from slipping, yet still offer outstanding ease and flexibility in setting the buttstock length. Precision machined from strong, lightweight 7075 aluminum, then hardcoat anodized with a hard, wear-resistant matte black finish.
AR-15, Issue:11, Page:047
Big Book Catalog, Issue:71, Page:051
SPECS: 7075 T6 aluminum, hardcoat anodized, matte black. 7¼" (18.4cm) O.A.L, 1.148" (2.9cm) O.D. Fits mil-spec AR15/M16 lower receivers. Rifle conversion requires a carbine spring and buffer, available separately.
Ar-15/m16 Buffer Tubes True Mil-Spec Black Alg Defense.
ALG Defense’s True Mil-Spec Buffer Tube is forged from 7075-T6 aluminum and is nearly double the strength of 6061-T6 aluminum found in most other “mil-spec” and commercial buffer tube variants. A dry film lubricant is applied to the buffer tube, which creates a semi-permanent application of solid lubricant for maximum wear resistance. Built by the Tier One supplier for military contractors of the M4 Carbine, these are the superior buffer tubes that military and law enforcement officers entrust their lives with every day. This buffer comes with or without engravings.