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Fits Rifle Or Cabine Barrels; Ramped To Help Guide Rounds Into Chamber

Economical, high-quality M4 barrel extension is machined to mil-spec standards with integral feed ramps and predrilled locator pin hole for fast, easy barrel installations. Machined from 8620 steel and head-treated for additional surface hardness to resist erosion by hot combustion gases for years of reliable service. Great for custom barrel jobs and caliber conversions.


AR-15, Issue:11, Page:022
Big Book Catalog, Issue:69, Page:020

SPECS: 8620 steel, in-the-white. .8125"-16UNF thread. Barrel locator pin required, available separately.

M4 BARREL EXTENSION MILSPEC 8620 STEEL
100-004-728WB
M4 Barrel Extension
100004728M4 Barrel Extension

Mfr Part: BXM4

$19.99

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In Stock
AR-15/M16 M4 BARREL EXTENSION