ARC Division Reactor19 G19 Gen 3/4 Integrally Compensated Slide (RMR Cut) – 9mm
The ARC Division Reactor19 is an integrally ported/compensated slide and barrel setup for Glock 19 Gen 3/4 9mm builds, designed to keep overall length compact while venting gases through the Reactor port system.
Built around a black nitride finished 416 stainless slide with an optics-ready cut, the Reactor19 supports Trijicon RMR and Holosun 407c/507c/508c pattern optics. The matching 4150 ported 9mm barrel features a 1:10 twist and an 11-degree target crown.