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
HK MP5 A3 Retractable Stock Buffer
HKP HK Parts
Now: $5.39Was: $6.74MP5 A3 Retractable Stock "H" Buffer For All HK A3 Retractable Stocks The A3 stock buffer is a high wear and common replacement items that does need to be replaced when they become torn, cracked, brittle, discolored & worn. These units are made from...Now: $5.39Was: $6.74 -
On Sale
HK MP5, MP5K, SP89 Bolt Carrier - Full Auto - 9mm
RCM
Now: $134.95Was: $149.95MP5K Full Auto Bolt Carrier - US- Made - RCM This part is machined from billet ordnance steel. Our US-made MP5K carrier is made to the most updated and latest MP5K F specs. Tungsten filled, heat treated, and factory fresh production. Providing the finest...Now: $134.95Was: $149.95 -
On Sale
HK Semi Auto Shelf for Receiver - Billeted
HKP HK Parts
Now: $14.36Was: $17.95HKP Semi Auto Shelf for Receiver - Billeted HK Semi Auto Shelf, Hanger Block to HK's factory specifications for c/p trigger housings. Weld on shelf that is the needed receiver block that welds to the rearward portion of the magwell to allow the use of...Now: $14.36Was: $17.95 -
On Sale
HK UMP 9mm 30 Round Magazine
HKP HK Parts
Now: $39.96Was: $49.95UMP 9mm 30 Round Factory Magazine - USA UMP 30 round magazine for the UMP. Each magazine features enhanced steel feed lips, and a 30 round magazine capacity. Each magazine counts as 3 U.S. Made compliant parts as an added bonus! This is the finest...Now: $39.96Was: $49.95 -
On Sale
HK MP5 Handguard - SL - .22LR
Magpul
Now: $89.95Was: $99.95Magpul HK MP5 .22LR SL Handguard This forearm has been CNC machined to fit the HK MP5 .22 model specifically. The factory unit will not fit. HK parts took the time and made the modification possible using a CNC machine that was dedicated to removing...Now: $89.95Was: $99.95 -
On Sale
TF1913 Pistol Stabilizing Brace - Side-Folding - Picatinny
SB Tactical
Now: $143.99Was: $159.99SB Tactical TF1913 Side Folding Pistol Stabilizing Brace - Picatinny Features: Complete assembly, ready-to-install Advanced steel hinge design locks in both folded and extended positions Pull-through design offering quick deployment Rigid polymer...Now: $143.99Was: $159.99 -
On Sale
HK UMP Magazine Spring - .45 ACP - 25 Round
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K UMP (.45 ACP) 25-Round Magazine Spring Perfect for spares and to have on hand as these are a consumable item that needs to be replaced from time to time. A must-have item if you own a USC/UMP conversion or UMP.Now: $8.96Was: $9.95 -
HK MP5, HK94 Optic Mount - Extended - Low Profile - Windowed
MFI
$124.95MFI MP5, 94 Extended Low Profile Scope Mount-Windowed MFI's newest addition to the line-up is a full inch longer, measuring 6.5 inches and featuring windows to view the factory serial number through the mount. This option is the longest, low-profile...$124.95 -
On Sale
HK MP5, HK94, SP89, SP5K Magazine - 9mm - 10 Round
H&K Heckler & Koch
Now: $80.95Was: $89.95H&K MP5/MP5K/SP5K 10 Round Magazine: Heckler & Koch factory fresh magazine from this current year's production. Mags hold 10 rounds only so this is ideal for restricted states or for those that want the mag to have a low profile. Compatible With:...Now: $80.95Was: $89.95 -
On Sale
HK UMP 45, SMG 45 Magazine Loader
HKP HK Parts
Now: $31.96Was: $39.95HKP HK UMP 45, SMG 45 Magazine Loader The enhanced loader is the finest loader available for UMP 45 magazines. Speed up your load time and save your thumb in the process. Made in the USA. Compatible With: H&K UMP & USC 45 magazines LWRC SMG 45...Now: $31.96Was: $39.95 -
On Sale
HK MP5 Sling Clip for Magwell
HKP HK Parts
Now: $7.96Was: $9.95HKP MP5 Sling Clip for Magwell This is the factory correct sling clip that attaches to the left hand side of the magwell. Note: 3 rivets are required to attach - sold separatelyNow: $7.96Was: $9.95 -
On Sale
HK91, G3 Tactical Grip for Metal Grip Frames
Ergo
Now: $53.96Was: $59.95Ergo G3, 91, PTR Tactical Grip For Metal Grip Frames The ergonomically enhanced ERGO Tactical Deluxe Grips are compatible with all metal HK grip frames, both the semi-auto & full auto metal grip frames. Compatible With: HK 91, G3, PTR, CETME, 93,...Now: $53.96Was: $59.95