The KNS PRECISION Non Rotating Trigger/Hammer Pins .154 Dia, G2 (NRTHP-154) are the STRONGEST pins that can be produced and were designed to withstand the high impact of full and semi-auto 9mm, .223, and 7.62mm suppressed weapons. The pins made of stainless steel.
This pins an absolute must-have for all M-16 owners. They will also protect your AR-15. It special anti-creep retainers prevent wear on your irreplaceable M-16 or AR-15 receiver. Pin installation tool and 2 Allen wrenches included. No modification to firearm required.
The .1555" diameter pin is for worn receiver trigger and hammer pin holes. Being non-rotational, further wear is eliminated. They will also fit new receivers and will remove the free-play in match triggers. This pins will not fit Jewell Trigger System.