Small Parts

Forward Assist Plunger Spring For MR556, HK416, HK417 & MR762 New HK German manufacture. Compatible With: HK MR556 HK 416 MR762 HK 417 HK G28 HK M27

HK MR556, HK 416 & MR762 & 417 Magazine Catch Spring HK German manufacture. Compatible With: HK MR556 HK 416, M27 HK MR762 HK 417, G28 AR15, M4 & M16 firearms

MR762 Firing Pin Retaining Pin

HK P2000 Recoil Spring Guide Rod

HK P30 & P30S Recoil Spring Guide Rod This is the guide rod portion of the recoil spring assembly. The rod is the only part included with no spring or rings.

HK German Control Latch: Compatible With: HK P30S HK P30LS

HK P9 Magazine Spring

HK SL8 & G36 Top Rail Screw This rail screw is the standard length rail screw used for all SL8 and G36 top rails. With the exception of the dual and single option models. A must have part and an easy part to loose or strip. Grab yours to have on...

HK SL8-1 Rear Sight Screw

Compatibility ALL USP Full Size Pistol Recoil Assemblies: HK USP 45 HK USP 40 HK USP 9mm

HK USP Compact 9mm - LEM HK USP Compact 40 - LEM HK USP Compact 45 ACP - LEM

HK45C & USPC Stripped Recoil Spring Guide Rod - Black This is the guide rod for the recoil spring assembly. It only includes the rod, no spring.

HK German Factory Thread Protector For All MP5 40/10 Factory HK Barrels. The Thread Pitch Is Metric 14 X.75

Used German HK MP5 Firing pin with new F/P Spring. Sold as a set, pull off's from trade in German MP5's.

H&K Semi Trigger Pack Or Sear Pack Elbow Spring W/ Roller Each spring is a great replacement for the converted packs that have bent elbow springs or for those that used the original F/A elbow springs that were bent to shape and are prone to breakage.

USED factory German HK storage, spare parts holderThis part would be better termed as a thread protector holder or spare parts holder. When the thread protector needs to be removed from the barrel, for cans or muzzle attachments, the thread protector...

HK UMP & USC Right Side Hammer Spring For Lowers

HK G36, SL8 Roll Pin For Gas Piston

HK G41 Firing Pin Spring

HK G41 Recoil Rod Spring

Billet Machined Titanium and Cerakoted enhanced thread protector in 13.5 X 1 LH for use with all threaded barrels. This unique design will fit over and protect the crown of your barrel for added protection. Made in the USA. Made from Titanium and...

A solid billet CNC offering that's 40% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium pins also carry less momentum than steel pins thereby...

KCI HK MP5 Locking Plate Spare locking plate for KCI MP5 30 round magazines. Compatible With: HK MP5

Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated gold for added protection and an overall great part.  Compatible...

AR Fire Control Lower - G36AR fire control G36 lower. You will need most of the standard AR fire controls including the selector's grip, detents, springs & the bolt hold open components etc. The selector spring and detent will not line up with AR...

AR Fire Control Lower Binary - G36G36 lower that will accept AR fire control components and grips, this model has the third position marked for using the Franklin Binary trigger set. The hammier will need to have little material removed off of the top...

Solid Titanium .40 caliber tactical thread protector, cap fits all barrels threaded 9/16 X 24 thread. A must have item to protect your threaded barrels, exposed threads & your HK pistol investment. Fits all HK .40 factory German & US threaded...