HK33 / HK53 / HK93 Receivers / Uppers
Upgrade the core of your HK33, HK53, HK93. Choose from genuine HK receivers, high-quality US-made options, and custom receivers for specialized builds.
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HK 90 Series Paddle Mag Release - Easy Install Fixture
HKP HK Parts
$187.95HKP 90 Series Paddle Mag Release Easy Install Fixture The original one and only paddle mag release fixture. The perfect jig for the installation of the factory correct paddle mag release with the proper hole placement and an easy to use jig that will...$187.95 -
HK33, HK53, HK93 Receiver Flat - Complete Weldment Set
HKP HK Parts
$229.95HK .223, 556, & 300 BLK Receiver Flat With Complete Weldment Set Combo Each flat and weldment set comes with 223/556/300BLK complete as a builders combo ready to assemble. Compatible With: HK93, HK33, & HK53 Style Builds 300...$229.95