Duality Arms KRISS Vector RATL-R

The Duality Arms KRISS Vector RATL-R is the best-known reset-assist upgrade for the Vector, and Duality is explicit that it is an assisted reset trigger rather than a super safety. The Super V bolt carrier drives the trigger forward during cycling so your finger resets faster, but the gun stays semi-automatic and fires one round per trigger pull. The body is machined from 4130 steel, and the kit ships with a selector cam that adds a third functional position on top of the factory safe and fire, with the safety-cam block already built into the cam.

Installation is a drop-in swap of a single part inside the factory fire control group, with no permanent modification to the receiver. It fits Gen2 and Gen3 Vectors in 9mm, .40 S&W, .45 ACP, and 10mm; Gen1 guns need an upgraded fire control group first because the RATL-R will not function with the original Gen1 FCG. Duality recommends 9mm owners step the mainspring up from the 9mm to the 10mm spring for consistent reset under the added drag. The install voids the KRISS factory warranty.

At $250 the RATL-R sits in the middle of the Vector reset-assist field, above the budget roller devices and below nothing meaningful in this niche. The identical product is also carried by Harrison Gunworks, which offers an install service for owners who would rather not open the fire control themselves. Forced-reset trigger legality is state-specific and still evolving, so confirm current federal, state, and local law before buying.