HK MP5/K & SP5/K Receivers/Uppers
Upgrade your MP5K, SP5K, or clone with a premium receiver or upper. Select from genuine HK parts, high-quality US-made options, and custom receivers for specialized builds.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HKP MP5 Replacement Buffer for Folding Stock or End Cap
HKP HK Parts
$3.49HKP MP5 Replacement Buffer for Folding Stock or End Cap Spare Replacement Buffer For Choate Folding Stocks Or End caps. Compatible With: Choate MP5 and MP5K stocks or end capsHKP-18735$3.49 -
Choate MP5 & HK94 End Cap & Sling Swivel
Choate
$36.95Choate MP5 & HK94 End Cap and Sling Swivel 100% US-made MP5 and HK94 end cap features an extra thick heavy-duty rubber buffer that is replaceable with a simple screwdriver. Each HK end cap also features a sling swivel for use with all types of slings...HKP-00115$36.95 -
HKP MP5, HK94 Case Deflector Rivet
HKP HK Parts
$1.95Each case deflector will require 2 rivets to attach the case deflector to the receiver or flat. If you want the factory look and feel of doing it right these rivets are a must. These are a factory correct rivet that provide a fantastic look and as close...HKP-18008$1.95 -
Choate MP5 Replacement Buffer For Folding Stock Or End Cap
Choate
$3.95Choate MP5 Replacement Buffer For Folding Stock Or End Cap Compatible With: Choate MP5 and MP5K stocks or end capsHKP-00116$3.95 -
HKP Spare Buffer For Folding Stocks & End Caps
HKP HK Parts
$9.95HKP Spare Buffer For Folding Stocks & End Caps New US manufactured flat style "H"buffer to replace the factory HK buffer on MP5K folding stocks and end caps. As well as a spare or replacement buffer for the MP5 & MP5K folding B&T stocks. Made...HKP-17886$9.95 -
HKP HK MP5 9mm Receiver Flat with Weldment Set
HKP HK Parts
$234.95MP5, SP5 Receiver Flat With Complete Weldment & Rivet Set New MP5 receiver flat and weldment set combined for the best complete build option on the market. Made by the original German tool and die maker of the LSC receiver flat utilizing factory...HKP-20920$234.95 -
H&K Magazine Catch - MP5, MP5K - Latest Style
H&K Heckler & Koch
$54.95H&K Magazine Catch - Latest Style Genuine HK mag release for factory and clone firearms. This component often resolves issues with mags not locking into position on HK clones and builds. Constructed from a single piece of steel unlike the...HKP-00911$54.95 -
B&T G3/91, 33/93, MP5/94 - Universal Scope Mount
B&T Brugger & Thomet
$119.95B&T G3/91, 33/93, MP5/94 - Universal Scope Mount Color: Black Height max: 35.5 mm Length max: 138 mm Length of top rail: 138 mm Material: Aluminum MSN: 5340-25-149-2979 NATO Accessory Rails: 1 Part number: BT-21262-1 Treatment: Hartcoat...HKP-16878$119.95 -
Chaote HK MP5K QD End Cap with Buffer - Black
Choate
$44.95Quick Detach MP5K, SP-89 Steel End Cap With Replaceable Rubber Buffer Fits all HK SP89 & MP5K pistols and rifles. Fits perfectly on all HK MP5K type builds or projects. Compatible With: MP5K SP89 Clone or other custom buildsHKP-20117$44.95 -
HKP MP5/HK94 Complete Weldment Set For Receiver Flat
HKP HK Parts
$49.95HKP MP5/HK94 Complete Weldment Set For Receiver Flat This is the finest, most correct weldment set for your HK MP5, 94 project available. Each Weldment Kit Contains: 1x Semi Auto Shelf Hanger Block 1x Rear stock bushing 1x Scope mounting piece 1x...HKP-01453$49.95 -
LSC/PTR Receiver Flat- MP5 9mm
LSC
$224.95MP5 Receiver Flat - PTR/LSC New PTR 9mm Receiver Flat made on the original LSC tooling. This flat is considered by many to be the most sought-after HK flat available on the market and perfect for that HK custom build. This item is not considered an FFL...HKP-01431$224.95 -
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 -
LSC MP5 9mm Receiver Flat
LSC
$199.95MP5 Receiver Flat -LSCLSC HK MP5 receiver flat is the most in spec flat that has ever been available. The best option for your HK German parts kit build.This flat is considered by many to be most sought after HK flat available on the market and perfect...HKP-20555$199.95 -
Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet
HKP HK Parts
$14.95New US made case deflector for receiver flat or receiver for all MP5, HK94, MP5K, & SP89 builds. The case deflector is riveted or welded in place on the ejection port of the 9mm receiver to aid in the extraction of the 9mm round. Machined from solid...HKP-17574$14.95 -
PTR HK MP5 Flat Receiver w/ Weldment Set
PTR
$289.95MP5 9mm Receiver Flat With Complete Weldment & Rivet Set - PTR/LSC Several years ago PTR bought out LSC and now owns the tooling and dyes for the LSC 9mm flats. These elusive flats have been hard to find and are now available for the first time here...HKP-19509$289.95 -
Choate HK MP5 QD End Cap with Buffer - Black
Choate
$99.95Quick Detach Steel End Cap With Replaceable Rubber Buffer - HK MP5 With this MP5 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...HKP-20118$99.95 -
Out Of Stock
H&K MP5, MP5K Case Deflector
H&K Heckler & Koch
$0.00HK German case deflector for receiver flat or receiver for all MP5, HK94, MP5K & SP89 builds. The case deflector is riveted or welded in place on the ejection port of the 9mm receiver/flat to aid in the extraction of the 9mm round. HK MP5, 94 HK...HKP-00871$0.00 -
Out Of Stock
H&K MP5K/SP89/SP5K 9mm End Cap
H&K Heckler & Koch
$0.00HK Factory German MP5K, SP-89, & SP5K End Cap With Sling Swivel Each pistol end cap is OEM HK German MP5K and MP5K-N and has the HK German factory buffer. Compatible with: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K Clone Or Other Custom BuildsHKP-00394$0.00 -
H&K MP5, HK94 Case Deflector Rivet
H&K Heckler & Koch
$9.95H&K MP5, HK94 Case Deflector Rivet Each case deflector, US or German-made, will require two rivets to attach the case deflector to the receiver or flat. If you want the factory look and feel of doing it right, these rivets are a must-have. These are...HKP-00147$9.95 -
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 -
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 -
HKP MP5 40/10 Receiver Flat
HKP HK Parts
$399.95MP5 40 & MP5 10mm Reciever Flat - USA The new and latest production with the weldment locations is already lasered and ready to go. This flat is the finest available for the MP5 40/10 family of firearms. Compatible with: MP5 .40 Cal MP5 10mm MP5 ...HKP-00767$399.95 -
HK MP5K, SP5K Rear Push Pin Weldment Set
USA
$14.95HK MP5K rear stock push pin weldment setThis weldment set is the 2 pieces needed for the rear of the flat/receiver that holds the stock/brace or end cap in place. CNC machined from weldable steel and the finest weldment available on the market. MP5K,...HKP-19632$14.95 -
HKP HK MP5 9mm Receiver Flat
HKP HK Parts
$189.95HKP MP5, SP5 Receiver Flat - 9mm New MP5 receiver flat made by the original German tool and die maker of the LSC receiver flat utilizing factory original German prints and specifications. The creator of our receiver flat has been regarded as the...HKP-20921$189.95 -
On Sale
HKP MP5K/SP89/SP5K 9mm Receiver Flat
HKP HK Parts
Now: $139.95Was: $159.95HK U.S Made MP5K, SP5K, & SP89 Receiver Flat HK MP5K receiver flat (no FFL required) as these are flats and are not considered receivers until the flat is rolled. These are the latest generation flats that have all of the latest improvements. Just...HKP-00768Now: $139.95Was: $159.95 -
HKP MP5-SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set
HKP HK Parts
$2,499.95MP5 SD 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol (N/A) rifle, or SBR build.This is the first time that these iconic kits have...HKP-18052$2,499.95 -
MP5K Complete Weldment Set
$49.95HK MP5K Weldment Set CompleteEach set of weldments is all of the weldments required for an MP5K flat. Rear sight base Sight tab Case deflector Semi auto shelf Side reinforcement tabs 2 X rear stock bushingsHKP-16231$49.95 -
HKP - MP5K, SP89 Receiver Flat With Weldment Set
HKP HK Parts
$239.95MP5K, SP89 Receiver Flat With Complete Weldment & Rivet Set New MP5K receiver flat and weldment set combined for the best complete build option on the market. Made by the original German tool and die maker of the LSC receiver flat utilizing factory...HKP-20882$239.95 -
H&K MP5 Rear Receiver Section
H&K Heckler & Koch
$14.95HK German demilled receiver section with rear sight base as installed at the factory. Rear push pin slot removed. MP5 & HK94 Factory HK rear sight bases (portion welded to MP5 receiver) You get the actual demilled section of an MP5 reciever with the...HKP-02167$14.95 -
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 MP5 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set
HKP HK Parts
$2,099.95MP5 9mm Pistol Build Kit Complete German & USA Made PartsON SALE WHILE SUPPLIES LAST!MP5 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a...HKP-18039$2,099.95 -
B&T MP5 Mounting Rail, Armasuisse Version
B&T Brugger & Thomet
$219.95B&T MP5 Mounting Rail, Armasuisse Version HK MP5 HK 94 Clones or other custom buildsHKP-16864$219.95 -
HK MP5 Rear Receiver Section - HKP
H&K Heckler & Koch
$24.95HK German demilled receiver section with rear sight base as installed at the factory. Rear push pin section still attached to the demilled receiver section.HKP-02147$24.95 -
H&K MP5 & SP5 A1 End Cap With Sling Swivel
H&K Heckler & Koch
$139.99HK German MP5 & SP5 A1 End Cap With Sling Swivel The MP5 end cap allows the user to add a single-point sling. Perfect for a pistol build or a lower profile setup. Made by HK Germany. Compatible with: HK MP5 HK SP5 HK94 MP5 clones and other...HKP-00114$139.99 -
HKP MP5K 40/10 Receiver Flat
HKP HK Parts
$199.95MP5K-40, MP5K-10 Receiver Flat - USA Receiver Flat for use with a MP5K-40 or MP5K-10mm build. Please note: This is for the flat as picture no weldments are included.HKP-18033$199.95 -
Out Of Stock
H&K MP5K/SP89/SP5K 9mm Incomplete End Cap
H&K Heckler & Koch
$0.00HK Factory German MP5K, SP-89, SP5K End Cap - Incomplete Each Pistol End Cap Is OEM HK German MP5K, MP5K-N, SP5K, SP89 stripped end cap. Will Fit All HK MP5K, PDW Or SP89 & Clone Type Variants. Compatibile With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K...HKP-18208$0.00 -
HKP HKMP5K 9mm Flat Receiver - Silver
HKP HK Parts
$199.95MP5K, SP89 Receiver Flat - 9mm New MP5K receiver flat made by the original German tool and die maker of the LSC receiver flat utilizing factory original German prints and specifications. The creator of our receiver flat has been regarded as the premier...HKP-20733$199.95 -
HKP MP5 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger
$2,449.95MP5 9mm Pistol Build Kit Complete German & USA Made Parts- SEF Binary Trigger GroupON SALE WHILE SUPPLIES LAST!MP5 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made...HKP-20523$2,449.95 -
H&K MP5 9mm Parts Kit 100% German - A2 Stock & FBI Lower
H&K Heckler & Koch
$2,299.95HK German MP5 9mm Used Parts Kit Complete MP5 Parts Kit - 9mm(Minus Receiver Of Course).All MP5 Kits:100% German Parts HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Fore arm - Black Bolt Group - MP5 Full Auto 2 small and 1...HKP-01911$2,299.95 -
Out Of Stock
$14.95