Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Ready For Chambering & Machining To A Custom Contour

Chrome-moly steel alloy blanks come button-rifled in three popular calibers to give you the flexibility of building a true one-of-a-kind custom AR. These are actual blanks that require machining of all exterior contours, chambering, muzzle threading, and installation of the barrel extension. Available in standard .223/5.56mm, plus two Russian cartridges popular on custom ARs: 5.45 x 39mm and 7.62 x 39mm. All come with 1-9" twist rifling.


AR-15, Issue:07, Page:016
Big Book Catalog, Issue:64, Page:016

SPECS: 4140 chrome-moly steel, with a temporary black oxide finish to prevent rust during storage. 20" (2.5 cm) long x 1" (51mm) O.D. 1-9" twist.

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Discontinued by Brownells

Product has been discontinued and no longer available.

Discontinued by Brownells

Product has been discontinued and no longer available.

Discontinued by Brownells

Product has been discontinued and no longer available.