HK91 / G3 / HK51 Receivers / Uppers
Upgrade the core of your HK G3/91 or PTR 91. Choose from genuine HK receivers, high-quality US-made options, and custom receivers for specialized builds.
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Out Of Stock
HK91, G3 Receiver Flat - US Made
PTR
$99.95HK G3, 91, PTR & CETME Flat - PTR Made by PTR with original HK tooling using factory specifications and a properly stamped receiver. No FFL is required as this is an unfolded flat that ships directly to the customer. This US made receiver flat...HKP-02320$99.95 -
HK91, G3, CETME Receiver Flat with Weldment Set
PTR
$189.95HK91, G3, PTR, CETME Flat & Weldment Combo - PTR Made by PTR91 on original HK tooling using factory specifications and a properly stamped receiver ready to roll and build. No FFL transfer is required as this is an un-folded flat. Compatible...HKP-02086$189.95 -
On Sale
HK V51 Backplate
HKP HK Parts
Now: $99.95Was: $167.95HKP V51 Backplate HK Parts brings you a long lost part that was no longer available till now. The Vector Arms V51 firearms was one of the most aclaimed PDW of its time but replacement parts have become difficult to source. We now take like new G3...HKP-21201Now: $99.95Was: $167.95 -
HK German Bayonet Adapter With Hardware
H&K Heckler & Koch
$159.95H&K German Bayonet Adapter With Hardware HK German Bayonet Adapter W/ Hardware made under a Turkish contract. The HK bayonet adapter replaces the cocking tube end cap (dust cap). Then the bayonet slides into the spring-loaded mechanism in the...HKP-00021$159.95 -
On Sale
HK German Bayonet Adapter Without Hardware - Incomplete - USED
H&K Heckler & Koch
Now: $99.95Was: $159.95HK German Bayonet Adapter Without Hardware - Incomplete - USED SOLD INDIVIDUALLY - VARYING CONDITION SHOWN INCOMPLETE USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. HK German Bayonet...HKP-00021-BNow: $99.95Was: $159.95