MP5K / SP5K Stocks / Braces / Slings
Enhance your shooting experience with comfortable and durable MP5K stocks, SP5K braces, and slings from HKP. Our HK Parts provide stability and improved handling, whether you're in the field or on the range. Explore our MP5K and SP5K stocks and braces for enhanced performance.
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On Sale
HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included
SB Tactical
Now: $265.45Was: $294.95SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter Designed for all platforms capable of accepting a mil-spec carbine receiver extension, the SBA4 is 5-position adjustable and features an integral, ambidextrous QD sling socket...Now: $265.45Was: $294.95 -
On Sale
Picatinny 8" Stock with 1913 Folding Mech
JMAC Customs
$274.45 - $278.95JMac 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 mechanisms 7075...$274.45 - $278.95 -
Out Of StockOn Sale
Picatinny 9" Stock with 1913 Folding Mech
JMAC Customs
Now: $278.91Was: $309.90JMAC Universal Picatinny 9" Stock with 1913 Folding Mech Feautures: NEW Integrated Rubber Buttpad!! 2x Integrated QD Sling Socket 9" Length 0.275" Cheek Rise Drilled and tapped for optional cheek risers Compatible with JMAC & SIG folding...Now: $278.91Was: $309.90 -
On Sale
HK MP5K Ultra Carbine Stock and Adapter
HKP HK Parts / Magpul
Now: $281.65Was: $312.95HK MP5K Magpul UCS Stock with Adapter The HK Parts UCS adapter and stock for the MP5K pairs our proven stock adapter with Magpul's UCS stock for a compact, adjustable configuration. The UCS stock features a reversible hinge for left and right folding...Now: $281.65Was: $312.95 -
On Sale
HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included - Gray
SB Tactical
Now: $269.95Was: $294.95SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter - Gray MP5K, SBA4 5-position adjustable brace features an integral ambidextrous QD sling socket for a quick install and removal sling attachment.This brace is the perfect addition for...Now: $269.95Was: $294.95 -
On Sale
HK MP5K, SP5K ACR Folding Stock with Stock or Brace Adapter - Picatinny
F5 MFG
Now: $292.45Was: $324.95HK MP5K, SP5K ACR Folding Stock w/Adapter - Picatinny The HKP picatinny end cap with the F5 ACR stock allows users to easily swap this, and other stocks, between their K and other platforms. This drop-in ready assembly attaches with the K's two...Now: $292.45Was: $324.95 -
On Sale
Triangle Stock - TS-8 with 1913 Folding Mech
JMAC Customs
Now: $256.49Was: $284.99JMAC Customs TS-8 w/ 1913 Folding Mech Triangle stock 8" with our 1913 folding mech (not assembled) 2x integrated QD sling socket 8" length Drilled and tapped for optional cheek risers (will be available in the future) Compatible with SIG folding...Now: $256.49Was: $284.99 -
On Sale
HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included - FDE
SB Tactical
Now: $265.45Was: $294.95SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter - FDE MP5K, SBA4 5-position adjustable brace features an integral ambidextrous QD sling socket for a quick install and removal sling attachment.This brace is the perfect addition for...Now: $265.45Was: $294.95 -
On Sale
HK MP5K, SP5K, SP89 Helmet Stock - Folding and Adjustable
B&T Brugger & Thomet
Now: $341.95Was: $379.95B&T HK MP5K, SP5K, SP89 Helmet Stock - Folding and Adjustable This Swiss-made folding helmet stock offers a compact, military-grade solution for MP5K-pattern firearms. Built from durable polymer and aluminum, it provides smooth length adjustment and...Now: $341.95Was: $379.95 -
On Sale
HK MP5, MP5K Folding Stock or Brace - HDA3
Haga Defense
Now: $314.95Was: $349.95HDA3 Stock and Brace for MP5K, SP5K The HDA3 is a modular, USA-made stock and brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...Now: $314.95Was: $349.95 -
On Sale
HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included - OD Green
SB Tactical
Now: $265.45Was: $294.95SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter - OD Green MP5K, SBA4 5-position adjustable brace features an integral ambidextrous QD sling socket for a quick install and removal sling attachment. This brace is the perfect addition...Now: $265.45Was: $294.95 -
Out Of StockOn Sale
HK MP5K 9mm 5 Position Retractable Stock - PDWC - Extended Buttpad
HKP HK Parts
Now: $295.96Was: $369.95HK MP5K PDW Telescopic - 5 Position Adjustable Stock - Extended Buttpad Finally the most anticipated PDW style stock for the MP5K ever developed. Made in the USA. The stock rails collapse along the top ridge of the grip frame for the lowest profile...Now: $295.96Was: $369.95