HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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HK UMP Lower - Navy 3 Position 0,1,Full
H&K Heckler & Koch
$1,249.95HK Heckler and Koch 3 Position Navy Lower for HK UMP New German Heckler & Koch UMP 3 position (0, 1, full) Navy lower. Each lower comes complete with all the factory internals. These lowers are ideal for the USC to UMP conversion and to keep as a...HKP-00592$1,249.95 -
Out Of Stock
HK UMP, USC Bolt Catch
H&K Heckler & Koch
$36.95HK UMP & USC Bolt Catch New HK German lower. Compatible With: HK UMP HK USCHKP-01897$36.95 -
HK33, HK93 Tri-Rail Handguard
B&T Brugger & Thomet
$369.95B&T Handguard 3x NAR for HK 93, 33 with Detachable Side Rails Specifications: Color: Black Height max: 48.8 mm Length max: 243.5 mm Length of right rail: 97 mm Length of left rail: 97 mm Length of bottom rail: 243.5 mm Material:...HKP-16868$369.95 -
HK53 Barrel - 5.56 / .223 - 8.275" - Threaded 15x1
RCM
$164.95RCM HK 53 (5.56/.223) Barrel - Threaded 15x1 These are the finest US-made barrels available and come highly recommended by HKPARTS. Machined 100% in the USA, 922r compliant, and counts as 1 US-made 922r compliant part. Specifications: Cold Hammer Forged...HKP-01156$164.95 -
HK MP5K, SP89 Grip Frame - Semi Auto SEF - Metal Style
HKP HK Parts
$189.95HKP HK Parts and Heckler and Koch HK MP5K, SP89 9mm SEF Metal Style Grip Frame Each German HK housing started out as a factory HK German select fire metal housing. Each housing was modified by welding in a factory correct semi auto shelf, clipped from a...HKP-16490$189.95 -
HK416, MR556 Buffer Tube - Enhanced - Commercial
H&K Heckler & Koch
$249.95HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial: Genuine HK German manufactured 416, MR556 new style latest generation marine environment & over the beach buffer tube. Each Commercial buffer tube has built in drainage...HKP-15424$249.95 -
Century Arms AP51 Fixed Stock - Cerakoted - Enhanced Buffer
HKP HK Parts / Heckler & Koch
$199.95H&K/HKP Century AP51 Fixed Stock - Cerakoted - Enhanced Buffer Each stock starts life as an excellent condition surplus stock. The stocks are then refinished and the recoil rod modified to work specifically with the AP51. Available...HKP-22183-M$199.95 -
HKP .45 ACP Vertical Slot Micro Comp - Threaded 16x1 RH
HKP HK Parts
$29.95HKP .45 ACP Vertical Slot Micro Comp - Threaded 16x1 RH The HK Parts micro comp & thread protector strikes a balance between a lightweight, minimalistic design and range functionality. The micro comp easily threads on to the end of any factory spec...HKP-22084$29.95 -
On Sale
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Turkish Contract - Seconds - Case of 55
Now: $1,096.95Was: $1,482.2555 Count Case of Turkish Contract 30 Round MP5 Magazine These Turkish military contract 30 round MP5 magazines are leftover "seconds" that HKP recently imported directly from Turkey. The magazines were manufactured by a Turkish contractor similar...HKP-21889Now: $1,096.95Was: $1,482.25 -
On Sale
HK MP7 Dual Magazine Clamp
HKP HK Parts
Now: $39.96Was: $49.95HKP HK MP7 Dual Magazine Clamp Our MP7 dual mag clamp was designed for quick mag swaps at the range or in the real world. The clamp works with any capacity MP7 magazine. Compatible With: HK MP7HKP-21597-MNow: $39.96Was: $49.95 -
Out Of Stock
HK MP5 to MP5SD Front End Conversion Kit
DTAC Dakota Tactical
$1,299.95Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further. Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...HKP-21318$1,299.95 -
Picatinny 8" Stock with 1913 Folding Mech
JMAC Customs
$304.90 - $309.90JMac 8" Stock with 0.275" Cheek Rise - 1913 Attachment Feautures: New Integrated Rubber Buttpad 2x Integrated QD Sling Socket 8" Length 0.275" Cheek Rise Drilled and tapped for optional cheek risers Compatible with JMAC & SIG folding...HKP-21241-M$304.90 - $309.90