Slip TripBuying an ACI? Don't forget your slip trip! A slip trip is required for an FRT in an MP5 platform because the roller delayed blowback system and hammer geometry do not provide the same bolt carrier reset timing found in AR style firearms.

Buying an ACI

Compatibility: This variant for PTR 9KT

Currently all Full-Size Semi-Shelf variants will come in the new 416 style ONLY

For installation instructions click here (and scroll to the bottom of the page)

You will receive this gift card via email

**The Full-Size Semi-Shelf variant only has an updated HK 416 style pictogram

Inside Diameter is 1

or blast forward device is REQUIRED

All sales of this product are final

Features the Lee Sporting logo on a laser engraved non-removable faux leather patch with an adjustable snap fit closure

Firing hand is shifted forward

The Three Bullet Pictograms are Cerakote White for SAFE and Cerakote Red for FIRE & AUTO