Gunsmith Blank for Pencil Barrels

This blank for long 3-pc collar systems comes with an smaller diameter bore made specifically for pencil barrels. The bore measures 0.545″ which leaves enough room for a gunsmith to fit it to the smaller diameter of the barrel after removing the flare at the end of the barrel.

Compatible only with the long 3-pc collar system and M4 suppressors.

Gunsmith fit only, must be bored to match your barrel after removing the muzzle device support flare.

Black Oxide 300 series stainless can be easily bored out with HSS tooling.

Due to the thicker wall of these spacers, they may move around without the suppressor in place since the outer collar cant compress it down like the thinner wall ones. Care must be taken to fit them snugly. Heat fitting or green Loctite sleeving compound (620) may be used as well to keep it in place.