Stocks / Braces / Slings
Explore our premium selection of HK-specific stocks, braces, and slings at HKParts, designed to enhance comfort and functionality for a variety of HK models. Our offerings include adjustable braces, tactical slings, and folding stocks, perfect for upgrading your HK MP5, HK416, or UMP. Whether for tactical use or recreational shooting, our durable and versatile accessories provide superior firearm support and stability.
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H&K UMP/USC (.40 S&W/.45 ACP/9mm) Rear Stock Axle Pin
H&K Heckler & Koch
$30.95HK German UMP Rear Stock Axle Pin This is the HK factory German rear stock pin that allows you to attach the stock to either the factory receiver of a UMP or for those that are doing the USC to UMP conversion. This is required to attach the stock to the...HKP-00604$30.95 -
MM HK 33/91/93/G3 5.56/.223 & 7.62x51/.308 Clubfoot With Heavy Rubber Buttpad
Michaels Machines
$229.95US-Made Clubfoot (21E/23E Style) Central Buttstock Section With US Heavy Rubber Buttpad Fits all HK 91/G3/21/23 and HK93/33/53 backplates and buffers. Just add your buffer and backplate and you are good to go. Great replacement or upgrade for your HK...HKP-01144$229.95 -
On Sale
HKP HK Parts 2 Point Operator Sling
HKP HK Parts
Now: $14.95Was: $19.95HKP HK Parts 2 Point Operator Sling 2 point sling similar to the popular Magpul style sling. Made to last and a great sling for the money. Not set up for use on the HK style rifles unless you add AR15/M4 style attachment points for the 2 points of the...HKP-15375Now: $14.95Was: $19.95 -
MKE PTR PDW Retractable Stock
MKE
$459.95MKE PTR PDW Retractable Stock A3 Factory new MKE stock professionally converted to fit PTR PDW rifles and pistols. This PTR PDW stock was modified with a heavy profile collapsing rod insert heat treated for longevity. The correct collapsing length on the...HKP-21376$459.95 -
HKP 91/93/33/G3 (7.62x51/.308) Enhanced HK Buffer For HK German MSG90 & PSG1
HKP HK Parts
$129.95HKP Enhanced Buffer This buffer is the factory correct style PSG1 & MSG90 stock buffer found in all factory HK PSG1, MSG90 German stocks. The overall diameter is .80" Compatible With: HK 91 G3, 93, 33, or PTR stock.HKP-01014$129.95 -
MKE HK G3 Retractable Buttstock
MKE
$359.99MKE HK G3 Retractable Buttstock The Century Arms MKE Retractable G3 Buttstock is an easy-to-install replacement stock system for HK G3-style firearms. The simple lock/release system is easy to operate, allowing shooters to adjust the stock length...HKP-21182$359.99 -
PTR HK 93/91/33/53/G3 (5.56/.223) & (7.62x51/.308) Central Stock Section With Butt Pad
PTR
$99.95U.S. HK 91, G3, PTR Central Stock Section Black With Butt Pad Compliant parts are hard to find and are important for keeping your HK G3, HK 91, HK33, and 93 build 922r compliant. Compatible With: HK G3, 91, PTR CETME HK 93, 33, 53 Other...HKP-00379$99.95 -
H&K HK 416/MR556 Mil-Spec Factory German E2 Rear Stock - Black
H&K Heckler & Koch
$199.95HK 416, MR556 Factory German E2 Rear Stock The HKE2 Buttstock fits mil-spec buffer tubes (receiver extensions) for M4/AR15 type weapons and has the concave style removable buttpad installed. Features: Ergonomic cheek weld for improved firing...HKP-01913$199.95 -
B&T HK MP5K, SP5K Telescopic Brace
B&T Brugger & Thomet
$549.95B&T Telescopic Brace for HK MP5K, SP5K B&T telescopic brace for HK SP5K/MP5K and clones Specifications: Length adjustable in 5 positions Includes replaceable elastomer rubber buffer Just add your favorite tailhook style device and you are good...HKP-19861$549.95 -
H&K Universal Gun Cleaning Wick Set - 8 Piece Set
H&K Heckler & Koch
$1.95Original German Army Issue HK91/G3/PTR Cleaning Kit Wick - Set of 8 Originally issued for the G3,91 & MG3 firearms but will work on pretty much any and all rifles & pistols. Each set comes with 8 BRAND NEW German manufactured cleaning wicks. Each...HKP-17646$1.95 -
HKP 2 Point Leather & Cotton Sling
HKP HK Parts
$59.952 Point Leather & Cotton Sling Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German artisan using quality US leather and hardware. Each sling is approximately 48" long...HKP-21320-M$59.95 -
SB Tactical - HK SP5K Side Folding Brace - Skeletonized
SB Tactical, HKP HK Parts
$229.95Side Folding Pistol Stabilizing Brace with HK Parts Adapter - HK MP5K, SP89, SP5K & Clones The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum. Available exclusively at HK Parts. Features: Made...HKP-21056$229.95 -
H&K HK G36C Rear Stock With Cheek Rest - Black
H&K Heckler & Koch
$199.95HK G36C Rear Stock With Cheek Piece Installed - German Genuine German Heckler & Koch G36 stock. The G36C stock is a full inch shorter than a standard G36 stock. This is an ideal stock for those wearing body armor, for those who are doing the SL8...HKP-00278$199.95 -
Choate MP5 & HK94 Folding Stock
Choate
$219.95Choate MP5 & HK94 Folding Stock Each stock features the same quick open steel housing and folding arm found on all HK stock offerings. Each stock is backed by the manufacturer's lifetime warranty but built tough enough that you will never have to use...HKP-00171$219.95 -
HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block - B Pin Style
HDPS
$209.95New Latest Production HDPS HK USC/UMP Stock Block -B Pin Style For use with all HK UMP factory or US-made folding stocks. Each unit comes with a new push-pin design. This is a required part of the HK USC-UMP style conversion. Each part is the latest...HKP-00773$209.95 -
Choate MP5K/SP89/SP5K 9mm Tactical Folding Stock
Choate
$229.95HK SP5K Folding Tactical Stock Made in the USA and counts as one 922r compliant part. Compatible With: MP5K D54K SP5K SP89 Zenith Z-5P/Z-5K & in-spec clonesHKP-00781$229.95 -
On Sale
PTR PDW (7.62x39) & (7.62x51/.308) Backplate With Recoil Rod
PTR
Now: $109.95Was: $149.95PTR PDW Backplate Assembly Complete With Recoil Rod Each unit has been built with new HK parts and painted HK black, ready for use. The PTR PDW is the collapsible recoil-style assembly designed for use on HK51-style builds such as the PTR PDW pistol or...HKP-02665Now: $109.95Was: $149.95 -
H&K 91/93/33/53/G3 (5.56/.223) & (7.62x51/.308) Rear Stock Buffer With All Mounting Hardware
H&K Heckler & Koch
$24.95German HK G3, 91 & PTR91 Complete Rear Stock Buffer Assembly Each unit comes with all of the mounting hardware for installing the G3 buffer to your backplate assembly. Also fits the HK93, 33, and 53 fixed stocks as well (use the same buffer).HKP-00362$24.95 -
H&K HK MR556/MR762/416/417 German E1 Convex Butt Pad
H&K Heckler & Koch
$64.95HK MR556, HK416 & MR762, HK417 German E1 Convex Butt Pad The HK Convex buttpad can be used to swap out on the factory E2 or concave-style buttpads for those who desire this option. This way, you can use the concave or convex-style buttpads...HKP-01915$64.95 -
H&K Ambidextrous Sling Pin O-Ring
H&K Heckler & Koch
$1.95H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...HKP-01090$1.95 -
H&K HK MR556/416 Slim Line Stock - RAL 8K
H&K Heckler & Koch
$249.95HK 416A5, HK416 & MR556 Slim Line Retractable Stock - RAL 8000 New from HK Germany the slim line retractable stock fits all commercial & mil-spec AR-15/M16 buffer tubes. Marked with the HK logo and issued on specialized HK 416, MR556 rifles...HKP-17602$249.95 -
Out Of Stock
B&T Ambidextrous Sling Pin - Small
B&T Brugger & Thomet
$58.95B&T Ambidextrous Sling Pin - Small Replaces the small push pin to allow a sling attachment point on either the left or right side of the firearm. Each measures: 6x29mm with rubber o-ring and net screw.HKP-16886$58.95 -
Choate HK 91/G3 (7.62x51/.308) Complete Tactical Folding Stock
Choate
$179.95HK91, G3, & PTR Folding Stock With Adjustable Length Of Pull - Tactical Stock This stock is adjustable by two inches when using the innovative spacer system. It comes fully assembled and ready to drop on your favorite HK. The adjustable length system...HKP-01951$179.95 -
H&K HK MR556/416 Slim Line Stock - Black
H&K Heckler & Koch
$249.95HK 416A5, HK 416, MR556 Slim Line Retractable Stock New from HK Germany the slim line retractable stock fits all commercial & mil-spec AR-15/M16 buffer tubes. Marked with the HK logo and issued on specialized HK 416, MR556 rifles. Compatible...HKP-16244$249.95 -
HKP HK UMP (.40 S&W/.45 ACP/9mm) USC to UMP ACR Stock Upgrade
HKP HK Parts
$459.95HK USC-UMP ACR Stock Adapter & ACR Stock Combo A new product that allows you to add the widely popular Remington ACR folding, adjustable stock to your USC-UMP conversion. Each unit comes complete with the ACR stock, hinge pin, sling mount and stock...HKP-17252$459.95 -
SB Tactical - HK MP5 Brace with HKP Adapter - Skeletonized
SB Tactical, HKP HK Parts
$299.95SB Tactical Side Folding Brace For The HK MP5, SP5 model Each brace comes assembled ready to install no assembly required. This complete brace will come assembled with our own HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling...HKP-21055$299.95 -
H&K HK MR556/416 Mil-Spec Enhanced Buffer Tube
H&K Heckler & Koch
$254.95HK 416 & MR556 OTB (over the beach) Buffer Tube/Receiver Extension Each mil-spec buffer tube has built-in drainage holes in the rear of the tube and also on the bottom to maximize efficiency. Each buffer tube has ball-bearing rollers to tighten the...HKP-02716$254.95 -
B&T APC, HK UMP Folding Stock - Black
B&T Brugger & Thomet
$139.95B&T APC, HK UMP Folding Stock - Black New Swiss manufactured B&T APC & UMP Folding stock. (NFA rules apply) Compatible With: APC 9mm APC .45 APC 556 APC 300 Will also work to place the UMP stock on an UMP or USC conversion. This stock will...HKP-17441$139.95 -
H&K HK MR556/MR762/416/417 Tactical Sling - Black
H&K Heckler & Koch
$76.95H&K HK MR556, MR762, 416, & 417 Tactical Sling - Black OEM HK German part. The tool is built into the HK sling hook. For the MR556 model, a sling adapter will be needed for the front attachment point as the MR556 lacks the ambi sling loop on the...HKP-00028$76.95 -
HKP HK MP5K to MP5 Stock Adapter
HKP HK Parts
$129.95HKP HK MP5K to MP5 Stock Adapter Our new MP5K to MP5 stock adapter is the perfect addition for those looking for a stock that provides a better line of sight and a better cheek rest position like the MP5 A2 fixed stock does. This stock adapter will allow...HKP-20988$129.95 -
Choate HK 91/G3 (7.62x51/.308) Folding Stock Replacement Buffer
Choate
$3.95Choate HK 91 & G3 (7.62x51/.308) Folding Stock Replacement Buffer Choate .308 folding stock replacement buffer for all HK91/G3 PTR stocks. A great item to have on hand as these do wear and are prone to breaking. Compatible With: HK 91/G3HKP-00211$3.95 -
On Sale
H&K 93/53/33 (5.56/.223) Backplate - Parkerized - BLEMISHED
H&K Heckler & Koch
Now: $37.95Was: $64.95H&K 93/53/33 (5.56/.223) Backplate - Parkerized - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German backplate with the recoil assembly cup...HKP-16252-BNow: $37.95Was: $64.95 -
H&K German Leather Sling - Used - Excellent
H&K Heckler & Koch
$79.95Original Surplus German HK Leather 2 point sling - Used- Excellent Comes with HK sling hook. Pulled from German military G3 rifles. Complete and in excellent shape overall. Made with leather straps and steel hardware and HK sling hook. Last of...HKP-20347$79.95 -
HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B- Eyelet Screws
HDPS
$229.95HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B- Eyelet Screws New latest production HDPS HK USC/UMP Stock Block type for use with all HK UMP factory or US made Folding Stocks. Each unit comes with the sling loop eyelet and thumbscrews. This is a...HKP-16756$229.95 -
PTR AR Stock Adapter For HK Firearms
PTR
$99.95AR15 to HK 90 Series Stock Adapter For AR15 &M4 Style Stocks, Braces For use on any commercial, mil-spec, or pistol AR15/M16/M4 stock, brace, & buffer tube of your choice. Perfect for your HK rifle, pistol, or SBR build. With our M4 adapter, you...HKP-16550$99.95 -
SB Tactical MP5 & SP5 Folding Brace - Skeletonized
SB Tactical
$149.95SB Tactical MP5 & SP5 Folding Brace - Skeletonized Features: Each brace comes assembled ready to install no assembly required Made in the USA B&T inspired design & styling QD Sling Attachment Fully adjustable nylon stabilizing strap Machined...HKP-21397$149.95 -
H&K HK MR556/MR762 Receiver Take Down Tool
H&K Heckler & Koch
$19.95HK MR556 & MR762 Take Down Tool For The Upper & Lower Receiver This part is the tool used to tighten down the stock movement on the E1/E2 stock. Each tool will be stored in the rear of the E1/E2 stock. Please Note: We get...HKP-02653$19.95 -
B&T Ambidextrous Sling Pin- Large
B&T Brugger & Thomet
$57.95B&T Stock Ambidextrous Sling Pin That Replaces The Push Pin For Stock Each ambi sling pin will allow the use of a sling mounting location for either a left or right hand shooter for replacing the rear stock push pin with this ambi sling pin. Each pin...HKP-16887$57.95 -
HKP HK 91/G3 (7.62x51/.308) Stock Set - Jungle Green - Surplus
HKP HK Parts
$26.95Original German Army Used Surplus G3, 91, PTR Tropical/Jungle Green Stock Set Factory HK German production. Each stock set is used but in perfect working order. Each set is in overall good condition. Most will clean up nicely with a little TLC. A...HKP-16331$26.95 -
H&K Ambidextrous Rear Stock Sling Pin - Large
H&K Heckler & Koch
$166.95H&K Ambidextrous Rear Stock Sling Pin - Large The ambidextrous sling hook push pin replaces the stock push pin on the rear stock of the HK firearm, to enable the use of an HK sling for both left and right hand use. This part will replace and work on...HKP-00078$166.95