MP5K / SP5K Series
Discover the most comprehensive selection of HK MP5K and SP5K parts at HKP. From bolt carrier groups and barrels to trigger packs and magazines, we provide all the HK parts you need to build, upgrade, or maintain your firearm. Whether you're enhancing your MP5K with 922r compliant parts or looking for the perfect SP5K flash hider, our top-quality components are designed for precision, reliability, and performance. Trust HKP for all your MP5K and SP5K parts and accessories.
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HK90 Trigger Spring- 3 Position - SEF and Navy
H&K Heckler & Koch
$9.95H&K HK SEF & Navy 3 Position Trigger Spring Elevate your HK 90 series performance with a factory-fresh trigger spring, designed for both semi and full-auto models. These are an essential upgrade for any 90 series owner, ensuring optimal...HKP-22178$9.95 -
HK416, MR556 Optic Mount - Protac 2.0 - Picatinny, MLOK
Streamlight
$169.99Streamlight Protac 2.0 Rail Mount for HK MR556 and HK416 The Streamlight ProTac 2.0 Rail Mount HP is a high-performance rail-mounted tactical light designed for long-gun applications. Producing 2,000 lumens and 100,000 candela, it delivers intense,...HKP-21939$169.99 -
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 -
HK MP5, MP5K Rear Sight Base
HKP HK Parts
$19.95HKP HK Parts Rear Sight Base - Weldment for HK MP5 and HK MP5K The only factory-correct sight base with the factory HK German side axis grooves. Compatible With: MP5, MP5K SP89, HK94 MP5 40, MP5 10 MAC-5 clones may require custom fitment...HKP-02450$19.95 -
Out Of Stock
HK -2 Roller For Bolt Head 7.98mm - Under-sized
H&K Heckler & Koch
$19.95H&K -2 Roller For Bolt Head 7.98mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -2 roller. Please Note: The price listed is per roller. Order 2 (pair) for...HKP-00505$19.95 -
HK MP5, SP5, MP5K, SP5K Magazine Clamp - Tri-Lock - 9mm
HKP HK Parts
$39.95HKP HK MP5, SP5, MP5K, SP5K Tri-Lock Magazine Clamp 9mm Triple magazine clamp HK MP5 magazines. Secures three 9mm magazines together for faster reloads and segregating ammo types (FMJ/JHP/subsonic/supersonic). Compatible With: MP5, SP5 MP5K,...HKP-22799-M$39.95 -
HK MP5, HK94, SP5 Magazine Spring - 10 Round
H&K Heckler & Koch
$6.9510 Round Magazine Spring - HK MP5, 94, SP5 A must-have repair and replacement part great for spares. Compatible With: All factory spec steel 10 round MP5, 94 style curved magazinesHKP-19454$6.95 -
HK MP5K, SP89, SP5K AR M4 Adapter and Stock - 9mm
HKP HK Parts
$229.95HK MP5K, MP5K-N AR Magpul Stock Each HK MP5K AR stock adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct H buffers to protect your expensive firearm. This is the finest AR stock adapter...HKP-17175$229.95 -
HK MP5K, SP89, SP5K Rear Sight Drum - 9mm
H&K Heckler & Koch
$79.95HK German MP5K, SP89 and SP5K Factory Rear Sight Drum New factory correct German HK MP5K, SP89, and SP5K rear sight drum. Compatible With: MP5K SP89 SP5K Other custom builds or clones Please Note: Many shooters prefer to upgrade to the MP5 rear...HKP-01110$79.95 -
Out Of Stock
HK MP5K, SP5K Super Safety Lower
AS Designs
$649.95AS Designs Super Safety Lower for the HK MP5K & SP5K Platform The ASD Super Safety Lower allows for faster follow-up shots by resetting after each shot. This is a true drop-in trigger and housing assembly featuring SEMI, SUPER, and SAFE...HKP-22386-M$649.95 -
HK MP5, SP5 3-Lug Faux Suppressor - MP5SD Style
MFI
$167.95HK MP5, SP5 3-Lug Faux Suppressor - MP5SD Style MFI replicated the classic MP5SD suppressor appearance. Designed to fit any factory spec 3-lug barrel and a perfect match with the HKP MP5 SD-style handguard conversion. This combination delivers the...HKP-22440$167.95 -
HK MP5K Parts Kit - 9mm - Pistol Build
HKP HK Parts
$1,889.95MP5K, MP5K-N Style Pistol Build Kit Complete The finest USA and German-made parts for a complete parts kit for an MP5K, MP5K-N pistol build. Each Kit Includes The Following HK Parts: Barrel - 5.5" button rifled, 3-lugged & threaded 1/2x28 with...HKP-02604$1,889.95