Colt 14.5″ XM4 prototype full heavy barrel sold

Colt 14.5″ XM4 prototype full heavy barrel with 1/7 twist.

This barrel was taken off an XM4 prototype upper for the early M4 program. The underneath of the barrel is stamped “X-26791-3″. It is test-fired only and has no throat erosion.

Features include: 1/7 full heavy barrel, A2 flashhider, sling swivel, handguard cap, front sight base with bayonet lug, A2 front sight post, barrel nut.

Markings: barrel stamped X-26791-3 on bottom side, front sight base C with M in bell
Stock #390-211

Sold

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