MP5 / SP5 Receivers / Uppers
Upgrade your MP5/SP5 with high-quality H&K receivers and uppers. Designed for superior fit and function, these critical parts ensure your MP5/SP5 build or upgrade is reliable and accurate. Browse our selection of H&K MP5/SP5 receivers and uppers for the best performance.
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On Sale
HK MP5 Receiver Flat- 9mm
LSC
Now: $215.95Was: $239.95MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for that HK custom build. This item is not considered an FFL...Now: $215.95Was: $239.95 -
On Sale
HK MP5 40/10 Receiver Flat
HKP HK Parts
Now: $146.21Was: $399.95MP5 40 & MP5 10mm Receiver Flat - USA The new and latest production with the weldment locations is already lasered and ready to go. This flat is the finest available for the MP5 40/10 family of firearms. Compatible With: MP5 .40 Cal MP5 10mm MP5 ...Now: $146.21Was: $399.95 -
On Sale
HK MP5F Receiver Flat - Alternate Holes
HKP HK Parts
Now: $100.76Was: $125.95HKP HK MP5F 9mm Flat - Alternate Holes MP5 receiver flat crafted by the original German tool and die maker of the LSC receiver flat using factory original German prints and specifications. This receiver features alternate holes for the correct MP5F or...Now: $100.76Was: $125.95 -
On Sale
DTAC Picatinny Rail For HK Receivers - 15 Slot
DTAC Dakota Tactical
Now: $67.45Was: $74.95Dakota Tactical Picatinny Rail To Weld To The Receiver Mil-Spec all steel picatinny rail in the white, relief cut for HK receivers & made for mounting scopes and optics to HK builds. This unit easily welds to the top of your HK receiver. Compatible...Now: $67.45Was: $74.95 -
On Sale
HK MP5 Magazine Release Set
H&K Heckler & Koch
Now: $166.45Was: $184.95H&K Magazine Release Set This is the complete magazine release kit that includes both the paddle mag release and standard left-to-right mag release on your HK 9mm rifle or pistol build. Compatible With: MP5, MP5K style 9mm models Set...Now: $166.45Was: $184.95 -
On Sale
HK MP5 End Cap with Sling Swivel
HKP HK Parts
Now: $67.96Was: $84.95HK Alloy Pistol End Cap with Sling Swivel Made from solid billet aircraft grade aluminum with the HK German sling loop and rubber heavy duty H buffer. With the alloy construction this unit will not break like the plastic end caps. Compatible...Now: $67.96Was: $84.95 -
On Sale
HK MP5 Receiver Flat - 9mm
HKP HK Parts
Now: $151.96Was: $189.95HKP HK MP5 9mm Receiver Flat New MP5 receiver flat made by the original German tool and die maker of the LSC receiver flat utilizing factory original German prints and specifications. The creator of our receiver flat has been regarded as the premier flat...Now: $151.96Was: $189.95 -
On Sale
HK MP5, MP5K Rear Sight Base - Billeted
HKP HK Parts
Now: $14.36Was: $17.95Billeted MP5, MP5K Rear Sight Base - Weldment All steel HK MP5, MP5K billeted rear sight base. The most correct MP5, MP5K rear sight base available. The only billeted factory correct sight base with the factory HK German side axis grooves. If you want...Now: $14.36Was: $17.95 -
On Sale
HK MP5K 9mm Trunnion
HKP HK Parts
Now: $46.36Was: $57.95HK MP5K Trunnion - USA US made to exact factory HK specifications for the HK MP5K type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunnions on the market. Machined to HK spec...Now: $46.36Was: $57.95 -
On Sale
DTAC Picatinny Rail For HK Receivers - 13 Slot
DTAC Dakota Tactical
Now: $67.45Was: $74.95DTAC Picatinny Rail For HK Receivers - 13 Slot Mil-Spec all steel picatinny rail in the white, relief cut for HK receivers & made for mounting scopes and optics to HK builds. This unit easily welds to the top of your HK receiver. Compatible With: HK...Now: $67.45Was: $74.95 -
Out Of StockOn Sale
HK MP5, MP5K Contact Piece for Paddle Mag Release - 9mm
H&K Heckler & Koch
Now: $53.96Was: $59.95MP5, MP5K 9mm Contact Piece For Paddle Mag Release - German This is the real deal NOT the .308 or .223 contact piece. Hard to find factory-correct, brand-new, latest production German HK 9mm contact piece. Compatible With: MP5, SP5, 94, SP5 MP5K, SP5K,...Now: $53.96Was: $59.95 -
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