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Anti Jam Feeding
The M4 1 ¾” Buffer Spacer installs in the buffer tube and increase spring tension behind the rear bolt
It comes with 2 out of date 20oz siphon tanks and 13 stripper clips
17599 Reg Cap Set screws (2)
fitting all masks (with open ventilation)
HK Army XV (15") Barrel Kit with Case - Polished Black Spyder Threaded Barrels Anti Jam FeedingCrafted with accuracy and style in mind, the XV Barrel Kit delivers unrivaled performance. The precision barrel bore honing used in the development of the XV allows for improved diameter uniformity and a smooth interior finish. This attention to surface detail will deliver you the ball on ball accuracy you are looking for in a high end barrel system. The XV Barrel Kit comes complete with 3 Barrel Backs, a Barrel Tip and 2 Interchangeable Accent Rings.
