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 G36 (5.56/.223) 4 Position Retractable Stock - Folding
H&K Heckler & Koch
$349.95HK G36, G36k, G36C, & SL8 Conversion Rear Stock Assembly The G36 KV stock, as it is known, was built by HK for a military contract and is built HK tough with an overall length of 8.5 inches (fully collapsed) to 11.40 inches when fully extended. Each...HKP-02682$349.95 -
HKP HK 91/G3 (7.62x51/.308) Fixed Stock Complete with Enhanced Heavy Buffer - Black
HKP HK Parts
$279.95New HK91, G3, PTR-91 U.S Made (PTR-91 Manufactured) Fixed Stock with Enhanced Heavy Buffer Installed Made from all German & U.S. made HK parts. This stock will fit any of the HK G3 & HK 91 & PTR rifles. This stock also counts as one U.S...HKP-18937$279.95 -
H&K HK33/HK93 A2 Black Buttstock - Surplus
H&K Heckler & Koch
$99.95H&K HK33/HK93 A2 Black Buttstock - Surplus HK33 complete black buttstock assembly. Surplus good condition. In perfect working order but will have signs use. This is the original buttstock for the HK33A2. Compatible With: HK33 HK93 HK53 V33, 53,...HKP-20133$99.95 -
HK German Leather Sling
H&K Heckler & Koch
$99.95German HK Leather 2 point sling - New Comes with HK sling hook. Complete and new condition. Made with leather straps and steel hardware and HK sling hook. Compatible With: HK91 G3 PTR91 & CETMEHK93 33 53HK94 MP5HK clones or other custom...HKP-20485$99.95 -
MI HK MP5K 1913 End Plate Adapter
MI Midwest Industries
$89.95MI HK MP5K 1913 End Plate Adapter The Midwest Industries Picatinny end plate adapter opens up a myriad of off-the-shelf stock and brace options. The adapter installs in the same manner as the factory end cap with a single pushpin. Modification may be...HKP-21584$89.95 -
PTR AR Stock Adapter & Buffer Tube For HK - Commercial
PTR
$124.95PTR AR Stock Adapter & Buffer Tube For HK - Commercial With this adapter, you can use your existing metal backplate, standard G3 buffer, and your choice of stock to add an AR15 stock to your HK firearm. This part is a perfect compliment for those who...HKP-14339$124.95 -
Strike Industries HK MP5K Dual Folding Stabilizer with Adapter
Strike Industries / HKP
$319.95 - $339.95Strike Industries Dual Folding Stabilizer with HKP MP5K Adapter The Strike Dual Folding Stabilizer paired with our MP5K picatinny adapter is one of the best options on the market for those looking for weight reduction and a compact configuration...HKP-21386-M$319.95 - $339.95 -
SB Tactical HK MP5 Brace with HKP Stock Adapter
SB Tactical, HKP HK Parts
$299.95SB Tactical HK MP5 Brace with HKP Stock Adapter 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 attachment...HKP-20214$299.95 -
Magpul/HKP HK MP5 ACR Stock
Magpul
$599.95HK MP5 ACR Stock: Our new aircraft grade aluminum MP5 ACR adapter is now offered in this combo stock unit. Pre installed and ready to drop in. With this MP5 ACR combo stock you will add the capability of an adjustable cheek rest and length of pull. With...HKP-21370-M$599.95 -
PTR HK 91/G3 (7.62x51/.308) M4 Stock Complete
PTR
$234.95PTR HK 91/G3 (7.62x51/.308) M4 Stock Complete AR15/M16 retractable stock combo set up for use on an HK91, G3 & PTR91 style of rifles. This is a perfect compliment for those that want to use an AR M4 style stock on your HK rifle or SBR. Each stock set...HKP-16142$234.95 -
On Sale
SB Tactical AR-15 Pistol Stabilizing Brace-Retractable
SB Tactical
Now: $189.50Was: $239.99SB Tactical AR-15 Pistol Stabilizing Brace-Retractable The SB PDW Pistol Stabilizing Brace® was designed in conjunction with Maxim Defense. It is 3-position adjustable brace compatible with mil-spec bolt carrier groups and carbine buffers. Compatible...HKP-18183Now: $189.50Was: $239.99 -
MKE HK33 A3 Retractable Buttstock - OD Green
MKE
$359.95MKE HK33 Retractable Buttstock - OD GREEN The MKE retractable HK33 buttstock is an easy-to-install retractable stock system designed to deliver superior comfort and reliable weapon control. The simple lock/release system is easy to operate,...HKP-21181$359.95 -
B&T Folding Stock/Length Adjustable Helmet Stock Section - Used
B&T Brugger & Thomet
$49.95B&T HK MP5K, SP5K, SP89 Folding/Adjustable Helmet Stock Section Used stocks taken from demilled Swiss Police MP5's. A great stock and value at a great price. Swiss made B&T folding and length adjustable helmet stock for the HK MP5, MP5K and...HKP-19784$49.95 -
H&K HK SP5 German Folding Stock with HK Parts Adapter
$299.95German Folding Stock with HK Parts Adapter - SP5 German folding stock with a SP5 HK Parts adapter. The HK Parts adapter is made from a solid billet of CNC machined aircraft grade aluminum and offers a QD attachment point. This will be a drop in stock for...HKP-20645$299.95 -
Out Of Stock
H&K PTR PDW (7.62x39) & (7.62x51/.308) Retractable Stock - A3 - Used
H&K Heckler & Koch
$0.00PTR PDW Retractable Stock - German Each PTR PDW A3 stock was converted by using a factory, like-new HK German A3 retractable stock. These stocks are professionally converted into a custom-fitted PTR PDW stock including a heavy profile collapsing rod...HKP-16100$0.00 -
Magpul M-LOK QD Sling Mount
Magpul
$27.95Magpul M-LOK QD Sling Mount The M-LOK Quick Detach Sling Mount provides a forward attachment point for the Magpul MS4 Sling and other push-button QD slings. Machined from Mil-Spec anodized aluminum, the low-profile M-LOK QD Sling Mount features beveled...HKP-17268$27.95 -
SB Tactical HK MP5 SBA3 5 Position Adjustable Stabilizing Brace - Black
SB Tactical
$269.95SBA3 - 5 Position Adjustable Stabilizing Brace - MP5 The perfect addition to your firearm with the ability to adjust length with its 5-position adjustable buffer tube. Dramatically enhances versatility, and features a minimalist design with an integral,...HKP-20276$269.95 -
H&K G3 Standard Buffer Locking Plate
H&K Heckler & Koch
$1.49H&K G3 Standard Buffer Locking Plate This is the plate used with the large buffer screw in the standard buffer.HKP-16982$1.49 -
HKP HK MP5K Folding Stock w/ Adapter - Black
$269.95German Folding Stock with HK Parts Adapter - MP5K German folding stock with MP5K HK Parts Adapter. The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum. Compatible With: MP5K SP5K In spec clonesHKP-19550$269.95 -
SB Tactical HK MP5K & SP5K SBA3 5 Position Adjustable Stabilizing Brace - Black
SB Tactical
$269.95SBA3 - 5 Position Adjustable Stabilizing Brace - MP5K / SP5K The perfect addition to your firearm with the ability to adjust length with its 5-position adjustable buffer tube. Dramatically enhances versatility, and features a minimalist design with an...HKP-20277$269.95 -
H&K MP5K Replacement Buffer For Factory End Cap or Folding Stock
H&K Heckler & Koch
$24.95H&K MP5K Replacement Buffer for Factory End Cap or Folding Stock This item is a Heckler & Koch Genuine Part, used to replace the factory HK buffer on MP5K folding stocks and end caps. This is only usable on the factory OEM stock and end cap. This...HKP-01233$24.95 -
HKP Single Point Sling - Dark Earth
HKP HK Parts
$29.95HKP Single Point Sling - Dark Earth This sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point HK sling. Features: Super thick all Dark Earth heavy-duty corduroy nylon to withstand years of heavy...HKP-09051$29.95 -
JMAC Universal Picatinny 8" Arm Bar with Brace Adapter
JMAC Customs
$279.85JMAC Arm Bar 8" Inch Rise with Brace Adapter and 1913 Folding Mech (A)rm(B)ar(8)inch(R)ise + AB-BA Brace Adapter + our 1913 Folding Mech (not assembled) Features: Modular Design - Brace/Stock with many mounting options Integrated QD Sling Socket 8"...HKP-21247$279.85 -
Magpul RSA - Rail Sling Attachment
Magpul
$29.95Magpul RSA - Rail Sling Attachment Attaches to Picatinny rails for an additional point of attachment for slings.HKP-02423$29.95 -
Strike Universal Picatinny - Dual Folding Adapter - Stabilizer
Strike Industries
$197.99Strike Dual Folding Adapter - Stabilizer This new stabilizer is the perfect option for the MP5 or MP5K platform that utilizes a 1913 picatinny back plate. For a quick and easy ambidextrous folding action. The Strike Dual Folding Adapter is a...HKP-21288$197.99 -
Tapco HK 416/MR556/AR15 Stock Wrench
Tapco
$32.95Tapco HK 416, MR556, & AR15 Stock Wrench This tool includes a Mil-Spec castle nut wrench, a standard-length receiver extension removal wrench, and an A1/A2 Flash Suppressor wrench. This offers an improved grip, and each tool has a...HKP-02407$32.95 -
H&K HK91, G3, PTR Parkerized Backplate & Recoil Rod Assembly - Parkerized
H&K Heckler & Koch
$34.95Parkerized Backplate - HK91, G3, PTR Surplus German HK backplate that has been refinished and reparkerized.HKP-19692$34.95 -
H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Ambidextrous Sling Loop
H&K Heckler & Koch
$40.95UMP, USC, SL8, & G36 Ambidextrous Sling Loop Or Eyebolt For Sling - German HK The addition of the HK eyelet creates a sling attachment point that will enable you to mount a sling using any of the hard mounting points located on the forearm of the...HKP-00611$40.95 -
MKE AP5 3 Point Sling Sling Complete
MKE
$34.99MKE AP5 3 Point Sling Sling Complete This is a Factory OEM Sling included with the AP5. Can be utilized on any HK 90 series of firearms. Compatible With: Century Arms AP5 HK MP5 & SP5 HK MP5K & SP5K HK94HKP-21187$34.99 -
Choate HK 91/G3 (7.62x51/.308) Folding Stock
Choate
$147.95HK91, G3, & PTR - Folding Stock The HK Choate side folding stock is complete with a sling swivel and a new German HK backplate, ready to drop on your favorite HK rifle. No gunsmith is needed as this is an easy-to-do drop in stock. Pull the two stock...HKP-01950$147.95 -
Choate PTR PDW (7.62x39) & (7.62x51/.308) Folding Stock
Choate
$228.95Choate PTR PDW (7.62x39) & (7.62x51 /.308) Folding Stock New HK Choate side folding stock complete with sling swivel, new German HK backplate, and ready to drop on your favorite HK rifle. No gunsmith is needed as this is an easy-to-do drop in stock...hkp-14348$228.95 -
H&K Bungee Single Point Sling - 1325mm Long
H&K Heckler & Koch
$114.95H&K Bungee Single Point Sling - 1325mm Long New factory HK German manufactured single point elastic "push/pull" bungee style sling. Includes the factory sling hook and is fully adjustable for the average sized mag to use. Will fit any HK application...HKP-18728$114.95 -
Kinetic Development Group HK USC Conversion to ACR Stock Upgrade - FDE
$459.95HK USC-UMP ACR Stock Adapter & ACR Stock Combo - Brown 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...HKP-19845$459.95 -
Choate PTR PDW & HK 51 (7.62x39) & (7.62x51/.308) Tactical Folding Stock - Adjustable
Choate
$239.95Choate PTR PDW & HK 51 Tactical Folding Stock - Adjustable The adjustable length system lets smaller-stature shooters or officers wearing body armor have a weapon that fits their needs. This stock also has spacers to allow the stock to be lengthened...HKP-14537$239.95 -
HKP MP5K Side Folding Brace Adapter
HKP HK Parts
$119.95HK Parts Adapter for Side Folding Pistol Stabilizing Brace - HK MP5K, SP89, SP5K & Clone The HK Parts folding brace adapter is the best option to attach the SB tactical Folding brace or any brace that utilizes the same mounting / folding...HKP-20798-M$119.95 -
On Sale
Strike Industries QD & Sling Hook Sling Attachement
Strike Industries
Now: $24.95Was: $28.95Ambush QD Sling Loop The Strike Industries Ambush low profile sling loop is the lowest profile sling loop designed for the MIL-STD-1913 rail. Made of solid steel, its unique locking bar design system allows for it to be lightweight and durable. Because...HKP-17381Now: $24.95Was: $28.95 -
AIM HK to AR15 Adapter
AIM
$54.99AIM HK to AR15 Adapter The Aim Sports Inc HK to AR15 stock adapter for AR15 stocks. Works with any Mil-spec buffer tube and castle nut to use any Mil-spec AR15/M16 stock of your choice on your HK rifle, SBR, or pistol. With our adapter, you can use your...HKP-20891$54.99 -
B&T APC9/APC45 Stock Conversion Kit
B&T Brugger & Thomet
$149.95Stock Conversion Kit - APC9/APC45 B&T stock conversion kit for BT-20522 telescopic brace (US Version). Converts the telescopic brace into a telescopic stock. Compatible With: APC9/APC45HKP-19968$149.95 -
HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) QD Sling Pin for Stock Block B
HKP HK Parts
$74.95Quick Detach Sling Pin for Stock Block B - USC, UMP This Ambidextrous QD Sling Pin allows you to replace your Push Pin Style or Eyelet Sling Loop - Style Pin in your Stock Block B for use of a QD Sling.HKP-18776$74.95 -
On Sale
HKP MP5 Stock Adapter - Black
HKP HK Parts
Now: $99.95Was: $149.95HKP MP5 Stock Adapter - Black Our HK Parts stock adapter was made from a solid billet of CNC machined aircraft grade aluminum with QD sling attachment points. Properly buffered with factory correct “H” buffers to protect your valuable firearm...HKP-20677Now: $99.95Was: $149.95