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*Match Trigger Compatibility.

The KP-15 is compatible with some cassette style match triggers including the KE Arms DMR and SLT units. The retention system of these triggers with D-Clips in the bushings to retain the fire control pins makes them better suited for use in the KP-15 than other designs that require captured pins.

The hammer pin area is wider for durability. Standard AR15 hammer pins can still be used but we offer a longer hammer pin for customers preferring a flush pin for aesthetic reasons.  If your match trigger uses captured or anti-rotation pins to secure the trigger in the lower, you may have problems using it in the KP-15.

The front lower portion of the KP-15 fire control area has a radius. This is a fact of plastic design for mold release and strength. Some cassette style triggers with large housings that fill the entire fire control group may not fit. Do not force a cassette trigger into place; you may damage your receiver doing so.

Known Compatible Match Triggers
KE Arms DMR
KE Arms SLT-1
KE Arms SLT-2
Wilson Combat TTU (uses D-Clip Retention like KE Triggers)

Fits But needs KE Arms Captured Pins
Rise Armament RA-535
Elftmann 3 Gun Trigger 
AIM Surplus SSAT 
Timney Impact AR Trigger
POF Cassette Triggers

Known Incompatible Triggers
Triggertech- Does not fit in fire control pocket; holes do not line up due to housing size.
CMC- Does not fit in fire control pocket; holes do not line up due to housing size.
PSA - Does not fit in fire control pocket; holes do not line up due to housing size.
Midwest- Does not fit in fire control pocket; holes do not line up due to housing size.