Rifle / SMG Parts
Elevate Your H&K Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your H&K rifle with top-notch parts and accessories. From MP5 and MP5K to SP5 and UMP/USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, SP5K, G36, or MP5 22, we have the H&K rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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Out Of Stock
H&K HK MR556/416 Mil-Spec German E1 Rear Stock - Black
H&K Heckler & Koch
$0.00H&K HK MR556 & 416 Mil-Spec German E1 Rear Stock - Black The HK E1 Buttstock fits mil-spec buffer tubes (receiver extensions) for M4/AR15-type weapons. Each stock comes with the convex buttpad as found on factory-issued HK 416s. Compatible...HKP-00052$0.00 -
H&K MP5 4 Position Burst Trigger Group 0,1,3,F
H&K Heckler & Koch
$3,299.95H&K MP5 4 Position Burst Trigger Group 0,1,3,F MP5 4 Position Burst 0,1,3,F Trigger Group Complete - HK GermanyNew HK German factory fresh 9mm MP5 4 position burst trigger group. Each unit comes just as it comes from the factory in Germany and is...HKP-01496$3,299.95 -
Out Of Stock
H&K MP5K/SP89/SP5K 9mm #28 Locking Piece
H&K Heckler & Koch
$199.95H&K MP5K/SP89/SP5K/SP5K PDW 9mm #28 Locking Piece This is the locking piece that is recommended when using a suppressor and 147-grain or heavier bullets. This will slow the rate of fire while suppressed to safe levels. This locking piece is 80...HKP-00918$199.95 -
HKP HK MP5 Aimpoint ACRO Sight - Extended
HKP HK Parts
$119.95HKP - HK MP5 Optic Mount - ACRO - Extended HK Parts now brings you one of the most requested optic mount for the MP5/MP5K platform. Extended design with a direct Aimpoint ACRO mounting interface. Our ACRO mounts provides an unobstructed view of the...HKP-21484$119.95 -
Magpul M-LOK 7 Slot Rail Section
Magpul
$21.95Magpul M-LOK 7 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...HKP-19569$21.95 -
B&T Sling Swivel - Universal Picatinny Attachment
B&T Brugger & Thomet
$29.95B&T Sling Swivel - Universal Picatinny Attachment Designed for H&K snap-hooks, mounts to any M1913 Picatinny Rail. Strong non-marring silent attachment point. Specifications: Color: Black Height max: 16.3 mm Length max: 12 mm Length of...HKP-16893$29.95 -
H&K 91/G3/MSG90 (7.62x51/.308) 10 Round Magazine - Steel
H&K Heckler & Koch
$89.9510 Round Magazine - Steel This part counts as 1 US-made part for 922r compliance for HK rifles. This magazine was made by Heckler and Koch and converted to ten rounds in the United States using the US-made floorplate. Compatible With: HK 91 HK G3 HK...HKP-01607$89.95 -
H&K Cocking Tube End Cap Spring
H&K Heckler & Koch
$4.95H&K Cocking Tube End Cap Spring Fits all German, Contract & US made cocking tube end caps. A great spare to have on hand as this part can become worn and be lost. The cocking tube end cap spring applies pressure to the cocking tube end cap/dust...HKP-17980$4.95 -
H&K German Leather Sling - Used-Very Good
H&K Heckler & Koch
$59.95Original Surplus German HK Leather 2 point sling - Used- Very Good Comes with HK sling hook. Pulled from German military G3 rifles. Complete and in good shape overall. Made with leather straps and steel hardware and HK sling hook. Last of the...HKP-20345$59.95 -
H&K HK 30 Round MP5/SP5 & MP5K/SP5K 9mm Magazine - RAL 8K
H&K Heckler & Koch
$99.95New German - H&K MP5, SP5, SP5K, MP5K 9mm - 30 Round Curved Magazine - RAL 8K Heckler & Koch factory fresh magazine from this current year's production. 9mm 30 Round curved all-steel magazine stamped "Made In Germany". This special offering...HKP-19975$99.95 -
H&K HK MR556/416 E1 Charging Handle
H&K Heckler & Koch
$129.95HK MR556 & 416 E1 Charging Handle - Ambidextrous HK's design boasts a smooth & easy to release latch with an enhanced oversized charging handle. Compatible With: HK MR556 HK 416 Other AR15, M4 & M16 applicationsHKP-01959$129.95 -
$49.95 -
HK SL8, HK G36 Full Size Aftermarket Complete Bottom & Side Rail Set - Black
USA
$69.95HK SL8/G36 Full Size Aftermarket Bottom & Side Rail Set Complete Comes with the bottom and 2 side rails (left and right) as well as the screws and allen wrench. Made of aircraft-grade aluminum and laser marked for easy number identification. New and...HKP-00633$69.95 -
Magpul HK SP5 SL Grip Module
Magpul
$129.95 - $179.95Magpul HK SP5 SL Grip Module HK Parts brings a solution for those that are looking to upgrade to the Magpul SL grip. Click the drop down menu to select either the clipped and pinned or push pin options. This is a perfect option for those wanting improved...HKP-20574-M$129.95 - $179.95 -
RCM MP5SD 9mm Locking Piece - 115 Degree
RCM
$33.95RCM MP5SD 9mm Locking Piece - 115 Degree This locking piece is a US-made version of the factory German MP5SD 115-degree locking piece. Each locking piece is made 100% here in the USA from ordnance grade steel, heat treated, and made to last...HKP-02192$33.95 -
Timney Triggers HK91 .308 2-Stage Trigger
Timney Triggers
$439.95Timney Trigger for - HK91, PTR 91 The Timney HK91 trigger is factory-set with a two pound first stage and a two pound second stage that elevates the platform so the shooter can achieve the utmost in accuracy.This offering comes complete with a Factory...HKP-20508$439.95 -
German HK 416, MR556 - Barrel Nut
H&K Heckler & Koch
$53.95HK MR556 & HK 416 Barrel Nut Or Socket For Barrel All steel barrel nut. This item is a must-have repair and replacement part for removal or when you have any work done to your barrel, as the barrel nut may become damaged in the removal and...HKP-02535$53.95 -
Out Of Stock
H&K 53/51 (5.56/.223) Handguard
H&K Heckler & Koch
$59.95HK German Correct Length HK 53, 51 & PTR Forearm New factory fresh HK German manufacture HK53 hand guard. Polymer handguard that is the proper length to cover the extended portion of the trunnion found on the HK53 and HK 51 style of firearms...HKP-00468$59.95 -
H&K Ambidextrous Sling Pin Locking Knob
H&K Heckler & Koch
$11.95New HK German Ambidextrous Sling Pin Locking Knob These are common replacement items, they can become loose as the O-ring wears and falls off. Be sure to order extra O-rings to avoid losing the locking nut. This is a common replacement part for those...HKP-01042$11.95 -
H&K Full Auto Paddle Magazine Release Bushing HK German - Used
H&K Heckler & Koch
$4.95H&K Full Auto Paddle Magazine Release Bushing HK German - Used This part is for use in all 90-series H&K weapon systems. Used for installing a paddle mag release. Please Note: This is not for use on semi-auto HK builds. This part is used for...HKP-02303$4.95 -
H&K Standard 4 Position Burst Left Side Selector Lever
H&K Heckler & Koch
$399.95H&K Standard 4 Position Burst Left Side Selector Lever Compatible with any of the 0, 1, 3, F or 0, 1, 2, F trigger packs. Brand new HK German part. No longer available so get them while you can.HKP-00123$399.95 -
H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Sear Spring
H&K Heckler & Koch
$8.95HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.HKP-01866$8.95 -
HKP HK91, G3, PTR91 2 Point Leather Sling - Dark Brown
HKP HK Parts
$49.952 Point Leather Sling - Dark Brown These new HK Parts 2-point slings are based off of the original German HK design that are no longer offered. This is a 1st time offering, handcrafted by a German artisan and made in the USA. Made from quality USA...HKP-20271$49.95 -
Promag HK 93/53/33 (5.56/.223) Magazine 40 Round
Promag
$29.95HK93, HK33, HK53 - 40 Round Magazine - USA These count as 3 US-made compliant parts as a bonus for those who need to maintain the 922r compliance. Compatible with all 5.56, .223, and 300 AAC Blackout rounds. Each magazine body, follower, and floorplate...HKP-13970$29.95 -
RCM HK G3, HK 91, PTR Trunnion
RCM
$64.95RCM Trunnion For The HK91/G3 Series - US Made This part is machined from ordnance grade 9310 enhanced steel and heat treated to exact HK specifications. This item is the best USA-made trunnion on the market. Machined to spec and are to the custom ground...HKP-01289$64.95 -
RCM HK G3K Locking Piece #18 - 50 Degree
RCM
$49.95RCM HK G3K Locking Piece #18 - 50 Degree The #18 LP is the factory-correct locking piece for G3K style builds or other custom builds. The locking piece is the timing mechanism that a delayed roller lock firearm uses to tell the firearm when to unlock and...HKP-02522$49.95 -
Snap Hook 1" - Universal
USA
$4.95Snap Hook 1" This is a 1" HK-style snap hook for sling or other custom projects. We also offer 1.25" HK sling hooks, as these are great spare parts to have on hand.HKP-00730$4.95 -
Trijicon, HKP HK MP5 6.5 MOA / Optic Mount Bundle - Black
Trijicon
$599.95RMR Optic Mount - Bundle - HK MP5 Includes: (1)Trijicon RMR Type 2 Red Dot Sight 6.5 MOA Red Dot, Adjustable LED (1) MP5 RMR Optic Mount The finest mounting solution to properly mount your RDS on your MP5 or any other receiver that utilizes the...HKP-20734$599.95 -
H&K HK G36, HK SL8 Ambidextrous Sling Pin
H&K Heckler & Koch
$49.95HK German G36/SL8 Ambidextrous Sling Pin This part replaces all of the HK SL8 or G36 push pins with a loop for the sling. This can be moved to attach a sling on either the left or right sides with ease.HKP-00619$49.95 -
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 -
H&K HK MR556/416 Vented Slimline Gas Block
H&K Heckler & Koch
$135.00HK German MR556, 416 Gas Block Complete - Low Profile This part is the factory slim-line, low-profile gas block for the MR556/HK416. There are no bayo lug or sling attachment points. This is the factory-correct gas block found on the MR556...HKP-02660$135.00 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Lower Axle
H&K Heckler & Koch
$9.95HK UMP & USC Lower Axle - German 3 X lower axle pins are used for each trigger group or lower all pins are the same size, except the mag release axle on the USC model.HKP-01893$9.95 -
HK G36, HK SL8 Side Rail Factory HK - Black
H&K Heckler & Koch
$67.95HK Factory German G36 & SL8 Side Rail With Screws Up to two side rails can be used on a G36 UMP, one for each of the sides. Made from hard coat anodized aluminum. Compatible With: SL8 full size G36 full sizeHKP-01962$67.95 -
Meprolight HK MP5, G3, 33, PTR, SP5 Night Sight Set
Meprolight
$109.00Meprolight HK MP5, G3, 33, PTR, SP5 Night Sight Set Meprolight produces a bright green night sight available for Heckler & Koch sub guns and rifles. These tritium night sight inserts are a no-brainer for a quicker, more accurate point-and-shoot...HKP-02564$109.00 -
B&T HK MP5 Folding Stock with HK Parts Adapter
B&T Brugger & Thomet
$277.95B&T Folding Stock for All MP5 Full Size Variants Swiss made B&T folding stock completely assembled With our own HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling attachment point. Compatible With: MP5 (NOT...HKP-20216$277.95 -
B&T Short Style Quick Detach Vertical Grip - Coyote Tan
B&T Brugger & Thomet
$77.95B&T Short Style Quick Detach Vertical Grip - Coyote Tan Swiss made B&T quick detach short vertical for-end grip with quick release throw lever for picatinny. Made of tan polymer and includes a water tight storage compartment in the bottom of the...HKP-18041$77.95 -
HKP MP5 End Cap with Sling Swivel
HKP HK Parts
$84.95HK Alloy Pistol End Cap with Sling Swivel Made from solid billet aircraft grade aluminum with the HK German sling loop and rubber heavy duty H buffer. With the alloy construction this unit will not break like the plastic end caps. Compatible...HKP-18138$84.95 -
Raddlock HK 91/G3 (7.62x51/.308) Magazine Block - 10 Round
Raddlock
$9.95HK 91, G3, & PTR 10 round Magazine Plug This plug is designed to limit the 20-round steel or Aluminum mag capacity to 10 rounds. Converts the standard mag to a 10/20 magazine. The best-recommended use is a 5/32" X 1/2"-3/4"...HKP-02443$9.95 -
SB Tactical HK MP5K, HK SP89, HK SP5K Side Folding Brace w/ HK Parts Adapter
SB Tactical
$229.95Side Folding Pistol Stabilizing Brace with HK Parts Adapter - HK MP5K, SP89, SP5K & Clones Side Folding Pistol Stabilizing Brace with HK Parts Adapter. The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum...HKP-19451$229.95 -
Tac Latch - PTR Spec
$69.95Tac Latch (latest Generation) PTR Spec - PTR .308 Firearms The new updated style of Tac latch is made specifically for the PTR 91 .308 receiver and will require very little modification to the firearm for installation. A major overhaul of the existing...HKP-17611$69.95