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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On Sale
HK416, MR556, HK417, MR762 Tactical Grip
Ergo
Now: $49.46Was: $54.95Ergo Grip PSG1 Style Grip For MR556 & MR762 Just in and a great upgrade if you want the PSG1 style grip frame for your HK MR556, MR762 & HK416, HK417, G28 firearm. The ergonomically enhanced ERGO Tactical Deluxe Grips fits all AR15, M16 and MR...Now: $49.46Was: $54.95 -
On Sale
HK416, MR556 Back Plate - QD Attachment
H&K Heckler & Koch
Now: $58.46Was: $64.95H&K HK MR556/416 Back Plate w/QD Attachment Factory HK back plate with QD socket for the HK MR556 and 416 A1/A4 models. Compatible With: HK MR556/HK 416 (A1 and A4)Now: $58.46Was: $64.95 -
On Sale
HK93 Wide Handguard - Short
AC-Unity
Now: $71.06Was: $78.95AC-Unity HK93 Wide Handguard - Short AC-Unity wide/short handguard, specifically designed for the HK33, HK93,HK34 and G3K. This handguard is also the perfect fit for PTR rifles utilizing the shorter HK93 length handguards. The perfect option to match up...Now: $71.06Was: $78.95 -
On Sale
HK MP5 Stock or Brace Adapter - .22LR
HKP HK Parts
Now: $79.96Was: $99.95HKP - HK MP5 .22LR Brace/Stock Adapter Expertly crafted from a solid billet of CNC machined aircraft grade aluminum with QD sling attachment points. Buffered with factory correct “H” buffers to ensure maximum protection for your valuable...Now: $79.96Was: $99.95 -
HK G36, G36K, G36C Bolt Head - Complete - Rare
H&K Heckler & Koch
$599.95Heckler and Koch HK G36, G36K, G36C Complete Bolt Head Rare new German HK bolt head for the G36, G36K, and G36C. This is the correct factory bolt head needed when converting the SL8 to use double-stack G36 magazines. The assembly comes complete with all...$599.95 -
On Sale
HK MP5 QD End Cap with Buffer
HKP HK Parts
Now: $47.96Was: $99.95Quick Detach Steel End Cap With Replaceable Rubber Buffer - HK MP5 With this MP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip top condition for years to come. Machined aircraft...Now: $47.96Was: $99.95 -
On Sale
HK G3, HK91, PTR Handguard - Slimline Style
POF
Now: $17.95Was: $19.95POF Slimline HK91, G3, PTR Forearm - POF New POF HK-contract slimline standard-length handguard full size HK G3, 91, PTR rifles. Does not feature internal heat shield. Compatible With: HK91 HK G3 PTR-91 CETME (modification may be needed) Other HK ...Now: $17.95Was: $19.95 -
On Sale
HK416, COLT M4 Magazine Spring - .22LR - 20 Round
HKP HK Parts
Now: $1.95Was: $3.95HKP 20 Round HK416 .22LR and Colt M4 .22LR Magazine Spring A good supply of spare mag springs is a must. These are ideal to have on hand as the spring can become damaged or worn out. New production mag spring for your Umarex HK416 & Colt 20 round 22...Now: $1.95Was: $3.95 -
Out Of StockOn Sale
MP5, MP5K Magazine Block - 10mm / .40 S&W - 10 to 30 Round Conversion
HKP HK Parts
Now: $7.96Was: $9.95HKP 10 Round MP5 40/10 Magazine Block MP5 10/30 mag block plug. This is designed to use on the HK MP5 40/10 30 round magazine. Very easy to install & use. Compatible With: MP5 .40, MP5 10mm Clones or other custom buildsNow: $7.96Was: $9.95 -
Out Of StockOn Sale
HK416, MR556, MR762 Fire Control Detent Stop Pin
H&K Heckler & Koch
Now: $18.86Was: $20.95H&K HK MR556/MR762/416 Fire Control Detent Stop Pin HK German manufacture. Compatible With: HK MR556 HK416 HK MR762Now: $18.86Was: $20.95 -
On Sale
HK UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Pin
H&K Heckler & Koch
Now: $5.36Was: $5.95H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch PinNow: $5.36Was: $5.95 -
Out Of StockOn Sale
HK91, G3 Extractor
PTR
Now: $27.89Was: $30.99PTR HK 91/G3 (7.62x51/.308) Extractor US Made by PTR. Made from stainless steel. Compatible With: HK G3 PTR 7.62 X 51mm modelsNow: $27.89Was: $30.99