Receivers / Flats / Uppers
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B&T MP5 Mount For Trijicon 1X24 Reflex
B&T Brugger & Thomet
$152.95B&T MP5 Mount for Trijicon 1X24 Reflex B&T Mounting Rail NAR Low Profile Mount for HK MP5 with Trijicon RX01m 1x24 Specifications: Color: Black Width max: 42.5 mm Length max: 125.5 mm Height max: 25.8 mm Material: Aluminum & Steel Treatment:...HKP-16863$152.95 -
B&T Offset 45 Degree Mount For Aimpoint Micro - Picatinney
B&T Brugger & Thomet
$129.95B&T Offset 45 Degree Mount for Aimpoint Micro - Picatinney In order to engage a target at close distance, a secondary optic without magnification is quite useful next to the primary scope, not only for snipers but also for dynamic rifle shooters. The...HKP-18045$129.95 -
Out Of Stock
B&T TP9/MP9 Firing Pin - Black
B&T Brugger & Thomet
$39.95B&T Firing Pin For B&T TP9, MP9 B&T MP9, TP9 firing pin. Original Swiss made Brugger and Thomet production in new condition.HKP-17297$39.95 -
H&K HK MR556/416 Upper Receiver Threaded Piston Guide
H&K Heckler & Koch
$19.95MR556 & HK416 - Gas Piston Guide Bushing For Upper ReceiverMR556 & HK416 Piston Guide Bushing Threaded For Upper Receiver For All HK 416 & MR556 Firearms. HK MR556 HK 416 HK M27HKP-02640$19.95 -
HK 417 German Parts Kit w/ 12" Barrel
H&K Heckler & Koch
$26,000.00HK German 417 Assaulter 12" Parts Kit - Unfired The ultimate HK unicorn. Have you ever seen one let along seen a brand new German UNFIRED HK417 Assaulter parts kit with EVERY single part with the exception of the actual stripped lower. This is the...HKP-18433$26,000.00 -
B&T BT APC9, BT APC45 Quick Detach Brass Catcher - Black
B&T Brugger & Thomet
$164.95B&T BT APC9, BT APC45 Quick Detach Brass Catcher - Black Swiss made B&T brass catcher for B&T APC9 and APC45 firearms. Quickly and easily attaches/detaches to the right-side picatinny rail section. Made to collect the fired brass. B&T AG...HKP-18106$164.95 -
Out Of StockOn Sale
B&T HK MR556/MR762/416/417 Brass Catcher
B&T Brugger & Thomet
Now: $324.95Was: $369.95B&T Picatinny Rail-Mount Brass Catcher This B&T brass catcher is quick and easy to install on to your factory picatinny mount equipped handguard. If your handguard does not have a picatinny rail to mount the brass catcher, you can simply...HKP-16899Now: $324.95Was: $369.95 -
B&T MP5 SD Brass Catcher For Use With SD B&T Forearm
B&T Brugger & Thomet
$209.95B&T MP5 SD Brass Catcher For Use With SD B&T Forearm B&T brass catcher QD/QO polymer for HK MP5 SD. This only works only with handguard BT-21343HKP-18099$209.95 -
H&K HK 417 Brass Catcher - Black
H&K Heckler & Koch
$799.95HK Factory German HK 417 Brass Catcher This factory H&K brass catcher is quick and easy to install on to your factory picatinny mount equipped handguard. If your handguard does not have a picatinny rail to mount the brass catcher, you can...HKP-19179$799.95 -
Out Of Stock
H&K HK G36 Sight Rail w/ Mechanical Sights - Black
H&K Heckler & Koch
$0.00Sight Rail with Mechanical Sights - G36Low profile rail with built-in mechanical sights. Made from aluminum. Overall length 18".Fits all: G36 G36K G36CHKP-18729$0.00 -
Out Of Stock
H&K HK G36 Single Sided Picatinny Rail - Black
H&K Heckler & Koch
$0.00HK Lateral Picatinny RailSingle-Sided for Carry Handle.Fits: G36 G36K G36CMaterial: AluminumHKP-18724$0.00 -
H&K HK SL8, G36, Sight Rail w/ Flip Up Sights
H&K Heckler & Koch
$549.95HK Sl8, G36 Aluminum Sight Rail With Front & Rear Flip Up SightsNew production German HK HK Sl8, G36 picatinney rail with flip up front and rear sights. The latest production rail option from HK. All metal and built to take a lifetime of use and...HKP-17718$549.95 -
HKP 416 10.4" 5.56 Complete Upper Receiver Assembly
HKP HK Parts
$2,485.95HKP 416 10.4" 5.56 Complete Upper Kit Complete Each kit includes the complete upper assembly, bolt group, tungsten buffer, & high-reliability SS recoil spring. This upper kit is a complete gas piston HK 416 style upper assembly that will drop on your...HKP-17662$2,485.95 -
HKP HK MR556/416 Upper 8" 416C Style Conversion Kit
HKP HK Parts
$1,285.95MR556 & HK416 Upper Conversion Kit - 8" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 8" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...HKP-18629$1,285.95 -
On Sale
Picatinny Rail - HK G36 - HKP
Now: $134.95Was: $179.95HK Lateral Picatinny rail Ambidextrous for carrying handle. Fits: G36 G36K G36C Material: Aluminumhkp-18726Now: $134.95Was: $179.95 -
B&T HK MP5/MP5K QD/QO Brass Catcher
B&T Brugger & Thomet
$264.95B&T HK MP5/MP5K QD/QO Brass Catcher Works with HK MP5 only with the BT-21358 handguard or for the BT-21573 handguard for the MP5K. Compatible With: HK MP5/MP5K HK SP5/HK SP5K ClonesHKP-21315$264.95 -
B&T HK MSG90 (7.62x51 / .308) Extended Swiss Mount
B&T Brugger & Thomet
$299.95Extended B&T Mounting Rail for HK MSG90 with Support for Brass Catcher This is the finest MSG90 scope/brass catcher mount available! Specifications: Color: Black Height max: 22.5 mm Length max: 340 mm Length of top rail: 332.5 mm Material: Aluminum...HKP-17285$299.95 -
H&K 93/53/33 (5.56 / .223) Rear Receiver Section
H&K Heckler & Koch
$79.95HK 93, 33, 53 Used Demilled Rear Receiver Section Each rear receiver section is from a factory German HK 33/53 that was demilled and includes the welded on rear sight base and push pin bushing intact.HKP-16481$79.95 -
Out Of Stock
H&K G36/SL8 (5.56/.223) Single Optic Carrying Handle - Used
H&K Heckler & Koch
$0.00HK German G36, SL8 Single Optic Carrying Handle In Used Shape.HKP-00806$0.00 -
Out Of Stock
H&K HK 416 10.4" Vented Upper Gas Block
H&K Heckler & Koch
$0.00HK German 10.4" Upper Gas Block Complete New Vented StyleNew HK German manufacture newest "VENTED" version direct from HK Germany.Great upgrade part for existing 10.4" uppers that have the older style non-vented gas block or to use on the MR556-HK 416...HKP-18056$0.00 -
Out Of Stock
H&K HK 416A5 Stripped Upper Receiver - Black
H&K Heckler & Koch
$0.00HK 416A5 - Stripped Upper Receiver - Black This is the factory correct receiver for a true 416 build as it features the M16 relief cut in the bottom, rear portion of the receiver (shown in last pricture). Compatible With: HK 416 HK MR223 HK MR556 Need...HKP-18786$0.00 -
Out Of Stock
H&K HK G36 Complete 1.5X Single Optic Carrying Handle
H&K Heckler & Koch
$0.00HK G36 Factory German New 1.5X Single Optic Carrying Handle - Complete. The 1.5X Single Optics Are Quite Rare. Mounting hardware sold seperatlyHKP-16742$0.00 -
Out Of Stock
H&K HK G36 Dual Optic With Carrying Handle - Used
H&K Heckler & Koch
$0.00HK G36, SL8 Dual Optic - Used PD trade in'sFactory HK G36/SL8 dual optic in used condition. This is a one time offering as far as we will not be able to get them again!Fits all: G36 G36K G36C Sl8-1, Sl8-4 & Sl8-6 models.HKP-00744$0.00 -
Out Of Stock
H&K HK G36 Picatinny Rail - Black
H&K Heckler & Koch
$0.00HK Lateral Picatinny Rail - Ambidextrous for Sight Rails.Fits: G36 G36K G36CMaterial: AluminumHKP-18725$0.00 -
Out Of Stock
H&K HK G36/SL8 New Style Scope Rail HK German - Black
H&K Heckler & Koch
$0.00New HK German HK SL8 & G36 Picatinny Scope With Rail/ Carry Handle This is the perfect mounting solution for optics. Made from the highest quality combat grade aluminum with a hard coat anodized black finish. Compatible with: G36 models SL8...HKP-01878$0.00 -
Out Of Stock
H&K HK MR556 Incomplete Upper Receiver
H&K Heckler & Koch
$0.00HK German Stripped HK MR556 Upper Receiver New factory German incomplete and unmarked MR556 upper receiver. Compatible With: HK MR556 HK MR223 HK 416*** Need a matching lower for your build? STS416 A5 LOWER - Specialized Tactical...HKP-02615$0.00 -
Out Of Stock
H&K HK MR556/MR223 A5 Incomplete Upper Receiver - Black
H&K Heckler & Koch
$0.00HK German Un-Assembled/Stripped HK MR556/MR223 A5 Upper Receiver Factory HK MR556 A5 upper receiver. This is the semi-auto MR556 variant. Compatible With: HK MR556 HK MR223 HK 416*** Need a matching lower for your build? STS416 A5 LOWER -...HKP-18785$0.00 -
H&K HK MR762/417 Complete Buffer
H&K Heckler & Koch
$129.95MR762, HK417 Complete Buffer Weight: 6.1 Oz Overall length: 3.20" OD: 1.18"HKP-16769$129.95 -
Out Of Stock
H&K HK MR762/417/G28 Receiver End Plate
H&K Heckler & Koch
$0.00HK MR762, G28 & HK 417 End Plate or locking plate for Receiver New HK German factory German HK MR762 HK 417 HK G28HKP-16610$0.00 -
Out Of Stock
H&K HK SL8, HK G36 Top Rail Screw
H&K Heckler & Koch
$0.00HK 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...HKP-16390$0.00 -
Out Of Stock
H&K HK UMP Demilled Extended Rear Receiver Section
H&K Heckler & Koch
$0.00HK German Factory UMPÂ Receiver Section - ExtendedThis is a demilled factory HK UMP rear receiver section that is perfect for the new Tom Bostic USC-UMP conversions. This section is the perfect length in order to do the USC/UMP conversion. Just in only...HKP-19798$0.00 -
Out Of Stock
H&K UMP (.40 S&W/.45 ACP/9mm) Demilled Rear Receiver Section
H&K Heckler & Koch
$0.00HK UMP De-milled Receiver SectionThis is a demilled factory HK UMP rear receiver section that is perfect for the new Tom Bostic USC-UMP conversions. This section is the perfect length in order to do the USC/UMP conversion. Last one available.HKP-01659$0.00 -
Out Of Stock
HKP HK MR556/416 Partially Complete Upper Receiver
HKP HK Parts
$489.95US Made Partially Complete HK 416, MR556 Style Upper Receiver New US made HK416/MR556 style upper receiver. Includes: Upper receiver Forward assist assembly Ejection port door assembly Piston guide Compatible With: HK MR556 HK MR223 HK...HKP-17783$489.95 -
HKP QD End Cap with Buffer - SP5
HKP HK Parts
$99.95HK SP5 - Quick Detach End Cap With this SP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip top condition for years to come. Machined aircraft grade aluminum and Cerakoted for the best...HKP-20757$99.95 -
Out Of Stock
TBR HK MP5 Top Mount Brass Catcher for MFI Rails - FDE
TBR Tactical Brass Recovery
$219.95TBR HK MP5 Top Mount Brass Catcher for MFI Rails - FDE MP5 model for MFI rail equipped guns.HKP-19148$219.95 -
Out Of Stock
TBR HK MP5, CZ Scorpion Brass Catcher - Black
$219.95SMG model for picatinny rail equipped mp5 and similar clones of HK mp5.Compatible with CZ Scorpion Evo SBR/Pistol. handguard will need to have picatinny rail installed on bore centerline on ejection port side. NOT compatible with CZ Scorpion Evo...HKP-19145$219.95