Small Parts
Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.
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Out Of Stock
Bolt Head Locking Roller -4, 7.96mm
HKP HK Parts
$8.95HKP HK Parts -4 7.96mm Undersized Roller HK spec under-sized roller that will fit all HK bolt heads including HK91, G3, HK33, HK53, HK93, HK94, MP5, SP89 all clones and the Cetme and its clones. An easy way to remember the size you need to order: Plus...HKP-17558$8.95 -
On Sale
HK21 Barrel Handle with Insert -7.62x51, .308, 5.56, .223 - USED
H&K Heckler & Koch
Now: $68.95Was: $99.95HK21 Barrel Handle with Insert -7.62x51, .308, 5.56, .223 - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Factory German upgrade for HK21 barrel handles Compatible With: HK21 THIS CLOSEOUT PART IS...HKP-99431Now: $68.95Was: $99.95 -
On Sale
HK USP V5, V6, V7 Complete Bobbed Hammer - USED
H&K Heckler & Koch
Now: $39.95Was: $59.95HK USP V5, V6, V7 Complete Bobbed Hammer - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Compatible With: HK USP 9mm HK USP 40HKP-01934-USEDNow: $39.95Was: $59.95 -
On Sale
HK33, HK53, HK93 Extractor - USED
H&K Heckler & Koch
Now: $48.95Was: $67.95HK33, HK53, HK93 Extractor - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. A great replacement for your HK or clone. A high wear item that can become worn,...HKP-00189-USEDNow: $48.95Was: $67.95 -
On Sale
HK VP9, VP9SK, VP40 Insert Housing with Ejector - USED
H&K Heckler & Koch
Now: $36.11Was: $49.95HK VP9/SK & VP40 Insert Housing w/ Ejector - USED SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Insert housing with ejector for HK VP9 & VP40. Compatible With: HK VP9 HK...HKP-16804-USEDNow: $36.11Was: $49.95 -
On Sale
HK Mark 23 Slide Release Spring - USED
H&K Heckler & Koch
Now: $9.95Was: $15.99HK Mark 23 Slide Release Spring - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL.HKP-01788-USEDNow: $9.95Was: $15.99 -
On Sale
HK MP5K, AP5-P Recoil Guide Rod - 9mm
MKE
Now: $19.95Was: $24.95MKE HK MP5K 9mm Recoil Guide Rod Incomplete recoil spring guide rod. Compatible With: MP5K MKE AP5-PHKP-22237Now: $19.95Was: $24.95 -
On Sale
HK VP9, VP9SK, VP40 Replacement Hex Button ONLY - Gold - BLEMISHED
HKP HK Parts
Now: $13.95Was: $24.95HKP HK VP9/VP9SK/VP40 Replacement Hex Button ONLY - Gold - BLEMISHED ONLY REPLACEMENT HEX BUTTON. DOES NOT INCLUDE SLIDE PLATE. CONDITION MAY VARY. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE...HKP-18111-GD-BNow: $13.95Was: $24.95 -
HK MR762 A4 Hammer
H&K Heckler & Koch
$40.95Heckler and Koch Hammer for HK MR762 A4 Rifles Factory-original German steel hammer for the MR762 A4. Designed as a direct replacement for worn or damaged hammers in MR762 A4 trigger assemblies. Compatible With: HK MR762 A4HKP-21968$40.95 -
On Sale
HK P7 Series Magazine Follower Insert - BLEMISHED
H&K Heckler & Koch
Now: $9.95Was: $29.95H&K HK P7 Series Magazine Follower Insert - BLEMISHED ONLY 1 UNIT AVAILABLE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Firing Pin Return Spring or...HKP-02365-BNow: $9.95Was: $29.95 -
Out Of Stock
B&T Recoil Buffer Pin - 3x12
B&T Brugger & Thomet
$1.95B&T Recoil Buffer Pin - 3x12 B&T factory recoil buffer pin for folding and telescopic stocks.HKP-21762$1.95 -
On Sale
HK P7M10 Magazine Follower Insert - .40 S&W - USED - BLEMISHED
H&K Heckler & Koch
Now: $19.95Was: $34.95H&K HK P7M10 .40 S&W Magazine Follower Insert - USED - BLEMISHED USED. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL.HKP-01364-BNow: $19.95Was: $34.95