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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MI Pistol Brace Compatible Side Folder
MI Midwest Industries
$129.95MI Pistol Brace Compatible Side Folder For use with Gear Head Works Tailhook Pistol Brace Features: Made in the USA Heavy duty side folding mechanism constructed from 4140 steel Full length locking lug for maximum strength. Solid positive...HKP-19959$129.95 -
H&K HK G28 Extended Buffer Tube Castle Nut - Black
H&K Heckler & Koch
$85.95HK G28 Buffer Tube Castle Nut- Black New HK German G28 castle nut for the HK MR762, HK417 & G28 models. Black in color. This is the proper part for use with the G28 buffer tube and stock upgrades. Compatible With: HK MR762 HK 417 HK G28 DMRHKP-16763$85.95 -
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 -
On Sale
HKP MP5 AR Stock, Brace Adapter
HKP HK Parts
Now: $79.95Was: $114.95HK MP5, HK93 Style AR, M4 Stock & Brace Adapter Each AR stock, brace 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...HKP-17118Now: $79.95Was: $114.95 -
SB Tactical - B&T - HK MP5 Swiss Folding Brace - Skeletonized
SB Tactical, B&T Brugger & Thomet
$299.95B&T MP5, SP5 Folding Brace - Swiss/USA - Skeletonized Factory Swiss B&T MP5, SP5 folding pistol brace with the SB Tactical/B&T components assembled. A rare offering using the B&T Swiss manufactured folding polymer end cap with sling...HKP-21052$299.95 -
Out Of Stock
H&K HK MP5, HK 416, GSG5 .22LR Sling - Black
H&K Heckler & Koch
$0.00HK 416, HK MP5 & GSG5 .22LR Sling This is a factory HK-manufactured sling perfect for HK weapons systems, including .22LR models. Each unit comes with 2 HK German sling hooks or ambi use, as well as a quick detach buckle. This part is fully...HKP-00893$0.00 -
On Sale
HKP HK SP5 Folding Stock Adapter
HKP HK Parts
Now: $109.95Was: $159.95SP5 Folding Stock Adapter 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 expensive firearm...HKP-20644Now: $109.95Was: $159.95 -
HKP MP5K/SP89/SP5K 9mm End Cap - HK Style
HKP HK Parts
$64.95HKP MP5K/SP89/SP5K 9mm End Cap - HK Style This end cap is an identical reproduction of the factory end cap and features the original HK style buffer. Compatible With: MP5K SP5K SP89 In spec. clones and custom buildsHKP-16135$64.95 -
H&K 91/G3 (7.62x51/.308) Fixed Stock - Alpine Green - Surplus
H&K Heckler & Koch
$29.95HK German Surplus G3, 91, PTR Stock Complete - Alpine Green The Alpine green stock was the last version that the German military produced and is the darkest green version available. All stocks are 90's production, date coded and made by HK for the...HKP-17112$29.95 -
Out Of Stock
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 -
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 -
Strike Industries HK MP5K Dual Folding Stock with Adapter
Strike Industries / HKP
$319.95Strike Industries Dual Folding Stock with HKP MP5K Adapter The Strike Industries Dual Folding Stock paired with the HKP MP5K picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock configuration...HKP-21428-M$319.95 -
H&K HK MP5 4 Position Retractable Buttstock - RAL 8K
H&K Heckler & Koch
$594.95HK German MP5 & HK SP5 A3 "F" Style Retractable Rear Stock - 4 Position - RAL 8K This German HK A3 retractable is the latest & greatest HK retractable German stock available. Now in the desirable RAL 8000 color. The F stock is designed to take...HKP-21265$594.95 -
Out Of Stock
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 -
Out Of Stock
Choate MP5K/SP89 9mm Steel End Cap W/ Buffer
Choate
$45.95MP5K & SP-89 Steel End Cap With Replaceable Rubber Buffer Fits perfectly on all HK MP5K-type builds or projects. All metal construction, so you know it will last. Each unit comes with a sling loop for use with multiple sling types. Compatible...HKP-00395$45.95 -
Gear Head Works Tailhook Mod 1 - FDE
Gear Head Works
$159.95Gear Head Works Tailhook Mod 1 - FDE We start with a solid piece of billet aluminum and meticulously machine every aspect for a part that is as nice to look at as it is to use. This version clamps to pistol buffer tubes or adapter spuds ranging from 1...HKP-19541$159.95 -
H&K HK MR762/417/G28 Ambidextrous Sling Adapter
H&K Heckler & Koch
$129.95H&K HK MR762/417/G28 Ambidextrous Sling Adapter HK German manufactured MR762, MR308 & HK 417 Sling Adapter Backplate. This backplate has ambidextrous sling attachment points for both the left and right side of the firearm. Compatible With: HK...HKP-16994$129.95 -
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 -
Magpul HK G3 / HK 91 PRS Lite Stock
Magpul
$289.95Magpul HK G3 / HK 91 PRS Lite Stock New G3 / HK91 PRS Lite stock will allow you to shoot your rifle with comfort while adding some style. We take the PRS Lite stock and attach our HK - AR adapter with a refinished back plate to bring you an assembled...HKP-21170-M$289.95 -
H&K HK MR762/417/G28 Adjustable Buttstock Set - RAL 8000
H&K Heckler & Koch
$699.95H&K HK MR762/417/G28 Adjustable Buttstock Set - RAL 8000 The elusive HK G28 adjustable stock kit complete with the upgraded parts needed to convert a stock MR762 or HK417 to allow this stock system to be used. German RAL 8000 color. Latest HK German...HKP-16760$699.95 -
HK G36/UMP Folding Stock Release Spring
H&K Heckler & Koch
$9.95HK G36 Folding Stock Release Spring This is the spring that fits under the stock release button to activate the folding and retention of the G36 or UMP stock. Compatible With: HK G36 HK G36K HK G36C UMPHKP-00637$9.95 -
Out Of Stock
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 -
HKP HK G3 Repair Manual
HKP HK Parts
$15.95HK G3, 91, PTR Repair Manual This manual contains parts 3 and 4 of the G3 Rifle Manual for the G3, which is the full auto version of the HK91. Part 3 is for troop repair and part 4 contains field repairs. This manual is NOT a heavy-duty...HKP-15212$15.95 -
Out Of Stock
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 -
On Sale
B&T MP5 Ambi Tactical Sling
B&T Brugger & Thomet
Now: $78.95Was: $169.95B&T MP5 Ambi Tactical Sling Originally designed around the MP5 platform, this versatile B&T sling can be used in single and two-point configurations for any firearm with at least one sling attachment point.HKP-17291Now: $78.95Was: $169.95 -
Out Of Stock
H&K HK MR556/416 Commercial Factory E1 Rear Stock - Black
H&K Heckler & Koch
$249.95H&K HK MR556/416 Commercial Factory E1 Rear Stock - Black HK 416 factory German E1 Rear Stock latest HK German stock for all HK 416/MR556 rifles. This HK 416 HKE1 Buttstock fits Commercial buffer tubes (receiver extensions) for M4/AR15 type weapons...HKP-15426$249.95 -
On Sale
HKP HK MP5K Folding Stock w/ Adapter - Black
Now: $229.95Was: $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-19550Now: $229.95Was: $269.95 -
On Sale
MKE HK33 A3 Retractable Buttstock - OD Green
MKE
Now: $299.95Was: $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-21181Now: $299.95Was: $359.95 -
H&K 3 Point Sling Replacement Holding Clip
H&K Heckler & Koch
$19.95New HK German 3-Point Sling Rear Stock Holding Clip This is the hard-to-find holding clip that secures the standard 3-point HK sling to the A2 or A3 stock. The rear sling clip can become weak and break, making your 3-point sling useless. The sling...HKP-01043$19.95 -
On Sale
HKP MP5K/SP89/SP5K 9mm AR Stock Adapter - QD
HKP HK Parts
Now: $99.95Was: $114.95HK MP5K, SP89 Style AR, M4 Stock & Brace Adapter With QD Sling Attachment Point Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum with QD Sling Attachment Points. Properly buffered with factory correct...HKP-18796Now: $99.95Was: $114.95 -
Out Of Stock
JMAC Universal Picatinny 9" Arm Bar with Brace Adapter
JMAC Customs
$272.85JMAC Arm Bar 9" Inch Rise with Brace Adapter and 1913 Folding Mech (A)rm(B)ar(9)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 9"...HKP-21248$272.85 -
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 -
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 -
H&K 93/53/33 (5.56/.223) Backplate - Parkerized
H&K Heckler & Koch
$64.95Steel Back Plate For HK93, 33, 53 & MP5, 94- Parkerized Finish HK German backplate with the recoil assembly cup guide installed. Each unit comes complete & freshly parkerized. Derived from a German HK91 backplate and using factory tooling,...HKP-16252$64.95 -
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 -
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 -
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 -
On Sale
HKP MP5K Side Folding Brace Adapter
HKP HK Parts
Now: $99.95Was: $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-MNow: $99.95Was: $119.95 -
Out Of Stock
PTR HK 91/G3 Central Stock Section - A2 Style
PTR
$54.95Central Stock Section For A2 Stock- HK U.S. This is a PTR-manufactured part that is hard to find and is important for keeping your HK G3 and HK 91 build 922r compliant.HKP-01463$54.95