HK UMP40 Roll Pin for Barrel, Part #17, *Excellent*

Original German manufactured serrated/new style barrel roll pin for the Heckler & Koch UMP series of submachine guns, in *Excellent* condition.

Sold Individually.

Perfect for a conversion, rebuild, or new build!
Includes the barrel roll pin only (as pictured).
These are part number 17 on the H&K diagram.
The serrated design of these pins allows them to retain both the .40S&W and .45ACP chambered barrels, as well as expansion from heat without breaking the polymer frame.
May show minor signs of wear, marring, grime, etc...

Designed for the UMP40 and UMP45 ONLY, and will not work with other models.