Triggers / Packs / Housings
Discover our extensive selection of HK triggers, packs, and housings, designed to enhance the functionality and performance of your Heckler & Koch firearms. From advanced binary triggers to competition-grade packs and Navy-style housings, our products cater to a variety of HK models including the MP5, HK416, and G3 series. Upgrade your firearm with our precision-engineered triggers for improved accuracy and responsiveness.
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HK45 Straight Trigger
Grayguns
$94.95Grayguns HK45 Straight Trigger The Grayguns HK45 straight trigger is a first-of-its-kind in the market. The trigger reduces over-travel while featuring a 90 degree optimal trigger break. Crafted in the US from heat-treated tool steel to...HKP-21496$94.95 -
Trigger Pack Hammer Spring - 5.56 / .223, 7.62x51 / .308 - Used
H&K Heckler & Koch
$4.95HK German Rifle Hammer Spring For All .308 & .223 Semi & Full Auto Trigger Packs The rifle 308/5.56 hammer spring is a popular upgrade in 9mm builds experiencing light primer hits. This is the factory correct 25 lb. weight for positive detonation...HKP-18066$4.95 -
HK SEF Short Axle Selector Lever For Metal Trigger Housings Only
HKP HK Parts
$19.95HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only HK German steel SEF selector lever. Please note that the polymer (plastic) style SEF housing uses the longer axle SEF selector lever not this product offering. Brand new factory...HKP-17910$19.95 -
Hammer Spring, HK Burst Trigger Packs
H&K Heckler & Koch
$19.95H&K Hammer Spring For HK Burst Trigger Pack The HK German factory intermediate poundage "satin" gray hammer spring is found in all 9mm, 40/10, and .556/223 burst trigger packs and is proven to be the most reliable and longest-lasting spring for burst...HKP-01111$19.95 -
Out Of Stock
HK SEF Short Axle Selector Lever For Metal Trigger Housings - Extended
HKP HK Parts
$69.95HKP SEF Short Axle Selector Lever For Metal Trigger Housings - Extended HK steel SEF Extended selector lever. Fits all metal HK grip frames. Please note that the polymer (plastic) style SEF housing uses the long axle SEF selector lever and not this...HKP-19026$69.95 -
HK MP5 Trigger Pack - 9mm - Complete - Full Auto - Hammer XX - Roller Sear
H&K Heckler & Koch
$499.95H&K MP5/K 9mm Full Auto Complete Trigger Pack This factory HK German MP5 9mm full auto trigger pack is offered as it was originally configured by HK Germany. It has been carefully preserved from a demilled 1980s production MP5 and comes complete with...HKP-19342$499.95 -
HK MP5, HK33, HK53, HK93 Trigger Housing - SEF Navy - Polymer - Push Pin - 9mm, 5.56 / .223
H&K Heckler & Koch
$129.95H&K MP5 & 93/53/33 (9mm & 5.56/.223) SEF Navy Style Polymer Housing - Push Pin Upgrade your older SEF contoured trigger pack with this Navy Style polymer housing, designed to enhance the look and feel of your HK firearm. Specifications: Push...HKP-02462$129.95 -
Out Of Stock
HK45, HK45C, USP, USPC, P2000 Shaped Spring - Slide Release
H&K Heckler & Koch
$9.95HK Slide Release Spring This is a high-wear item, as it cannot be reused once damaged or removed. It must be replaced with a new spring. Compatible With: HK USP 9mm, .40 & .45 HK USP Compact 9mm, .40 & .45 HK USP Tactical, Elite & Expert...HKP-01260$9.95 -
AR-15 Super Safety - Forced Reset Selector - Ambidextrous Levers
Atrius
$249.95Atrius Ambidextrous Lever Forced Reset Selector for AR-15 Style Firearms The Atrius Forced Reset Selector gives AR-15 users three selector positions: SAFE, SEMI, and FULL SEMI. It is designed for mil-spec fire control groups in .223, 5.56, and 300 BLK...HKP-22349$249.95 -
HK MP5K, SP5K Trigger Housing - SEF Universal - 9mm
H&K Heckler & Koch
$199.95H&K Heckler and Koch 9mm SEF Trigger Housing for HK MP5K and HK SP5K A one-size-fits-all approach for the MP5K and SP5K style semi-auto shelf. This is the best option for MP5K and SP5K receivers. Easily interchange the lower trigger group assembly...HKP-20557$199.95 -
Out Of Stock
HK UMP, USC Ejector Lever
H&K Heckler & Koch
$39.95HK German UMP & USC Ejector Lever - German New HK German OEM part. Each unit fits all calibers of UMP & USC firearms. A great spare to have on hand as they are prone to shearing off with use and must be replaced. Compatible With: UMP .45 UMP ...HKP-00263$39.95 -
HK45, HK45 Compact Trigger Rebound Spring
H&K Heckler & Koch
$8.95HK45 Trigger Rebound Spring This part is also known as the trigger return spring. Compatible With: HK45 HK Tactical HK45 Compact HK45 Compact TacticalHKP-01812$8.95