Great upgrade to replace factory units. The factory retainer is often lost during disassembly, this eliminates in the clip search and makes takedown and reassembly much easier. Pins compatible with both factory bolt catch and HBI extended catch. Please choose variation from dropdown. PKG includes both front and rear pin (pkg of 2).
I cannot guarantee fitment in all aftermarket lowers, only the factory units. Please review dimensions as provided below before ordering.
These are shipped default as following (fits 99% of the guns with aftermarket components)
Rear pin 1.6" OAL Captive area 1.33", shaft od .2345 +/- .001 and has a integrated flat to clear the receiver when installed
Front pin 1.5" OAL Captive area 1.22" (captive area is area between pin head and spring), shaft od .2345 +/- .001 May have a integrated flat or be round depending on manufacturing run
Installation of parts by qualified gunsmith recommended