Product Details
HK insert for plastic lower, mold over part. This is the steel reinforcement that is molded into the rear of a G3 or HK21 SEF plastic lower. In typical HK style the push pin holes are undersized as they would be finished machined after molding (that is how HK perfection takes place; German machining is much more precise than plastic ejection molding or welding).
Brand new old stock HK Germany production parts. Great for HK projects or construction of U.S. made lowers.
ORIGINAL HK, MADE IN GERMANY
CONDITION: NEW
HK PART NUMBER 221214
