Conversion Kits
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Out Of Stock
HKP HK 416C 9" Complete Upper Kit
HKP HK Parts
$2,799.95HK416C Complete Upper Kit - 9" After years trying to get these back in. We finally bring you a rare unicorn of a find. With our complete 416c upper kit all that would be needed to complete this kit would be a mil-spec lower or a STS 416c lower...HKP-21042$2,799.95 -
B&T APC9/APC45 Stock Conversion Kit
$149.95Stock Conversion Kit - APC9/APC45 Converts the Telescopic Brace into a Telescopic Stock. **B&T Stock Conversion Kit For BT-20522 Telescopic Brace (US Version) - For APC9/APC45HKP-19968$149.95 -
CQT FX Simunition Conversion Kit for MP5 - 9mm - Used
Simunition
$99.95CQT FX Simunition conversion kit for HK MP5 9mm. Used in good condition. Kits include: barrel insert locking piece barrel muzzle clamp.HKP-20648$99.95 -
HKP HK MR556/416 Upper 8" 416C Style Conversion Kit w/ Handguard
HKP HK Parts
$1,495.95MR556 & HK416 Upper Conversion Kit - 8" - HK 416C Style Finally an answer for all of those that have been wanting as close to the original HK 416C 8" barrel conversion kit for 416 or MR556. Each upgrade kit is as close as you can get to a factory HK...HKP-18628$1,495.95 -
Out Of Stock
H&K 91/G3 (.22LR) Conversion Kit
H&K Heckler & Koch
$0.00Used Surplus Genuine German HK G3 .22 caliber conversion kitFits and converts all HK91, G3 rifles to shoot the cheap and readily affordable .22 LR ammunition. Includes bolt group, barrel tube, 1 magazine, and cleaning kit and wooden green case. NO...HKP-01147$0.00 -
Out Of Stock
HKP G36K Barrel Front End Kit
HKP HK Parts
$749.95G36K Barrel Front End Barrel Kit - 223/556 New production HK G36K style barrel conversion and front end kit. Each kit will include the necessary parts to build a G36/SL8 variant into the G36K barrel length variant as pictured. All you need is this kit to...HKP-18225$749.95 -
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 -
MM HK UMP (.40 S&W) Conversion Kit
Michaels Machines
$999.95HK UMP 40 Caliber Conversion Kit With this UMP Conversion kit, UMP .45 sub guns can be converted to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub guns. This is a simple drop-in conversion. The time required to change...HKP-18754$999.95 -
MM HK UMP 9mm Conversion Kit
Michaels Machines
$889.95HK UMP, USC 9mm Conversion Kit US Made 9mmUMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop in conversion for those that have already done the USC-UMP conversion. The conversion parts are drop in with the...HKP-02286$889.95 -
MM HK UMP 9mm Conversion Kit - 16 inch Barrel
Michaels Machines
$889.95HK UMP 9mm Conversion Kit US made 9mmUMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop in conversion for those that have already done the USC-UMP conversion. The conversion parts are drop in with the total...HKP-02284$889.95 -
DTAC HK MP5SD Front End Kit
DTAC Dakota Tactical
$1,199.95Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further. Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...HKP-21318$1,199.95 -
H&K HK UMP .45 Conversion Kit
$1,099.95HK UMP 45 Caliber Conversion Kit: This kit optimizes the UMP platform by allowing the user swap between calibers in approximately 5 minutes. The Michael's Machine semi-auto bolt pairs perfectly with the TPM and Gideon Shadow receivers as well as USC to...HKP-20623$1,099.95 -
Out Of Stock
H&K HK VP9 to HK VP9 Long Slide Conversion Kit - Black
H&K Heckler & Koch
$0.00Features: Slide assembly with rear serrations, charging supports, and forward serrations / lightening cuts O-ring enhanced barrel, optimized and fit for accuracy Complete small parts and fire control including back plate, striker assembly, and drop...HKP-19040$0.00 -
H&K UMP (.40 S&W) Conversion Kit - Used
H&K Heckler & Koch
$1,087.95HK UMP .40 Caliber Conversion Kit This UMP conversion kit provides the necessary components to convert .45 sub-guns to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub-guns. This is a simple, drop-in conversion requiring a...HKP-00729$1,087.95 -
Out Of Stock
HKP HK 416/MR556 14.5 " Upper Conversion Kit, 14.5"
HKP HK Parts
$699.95MR556 & HK416 Upper Conversion Kit - 14.5"Finally an answer for all of those that have been wanting a 14.5" upper for an HK416 or MR556. This conversion kit adds an upper or a barrel option for your MR556, CR556 & HK 416's. Each upgrade kit is...HKP-17877$699.95 -
Out Of Stock
HKP HK MR556/416 9" HK416C Style Barrel Upper Conversion Kit
HKP HK Parts
$0.00MR556 & HK416 Upper Conversion Kit - 9" - HK 416C StyleFinally an answer for all of those that have been wanting as close to the origional, rare unicorn of a find HK 416C 9" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...HKP-18401$0.00 -
Out Of Stock
HKP HK MR556/416 Upper 9" 416C Style Conversion Kit
HKP HK Parts
$899.95MR556 & HK416 Upper Conversion Kit - 9" - HK 416C StyleFinally an answer for all of those that have been wanting as close to the original, rare unicorn of a find HK 416C 9" barrel conversion kit for 416 or MR556. Each conversion kit upper or barrel...HKP-18674$899.95 -
HKP HK UMP (9mm) Conversion Kit - 3 Lug - Threaded Barrel 1/2 x 28
HKP HK Parts
$999.95HK UMP 9mm Conversion Kit - USA - 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those that have already done the USC-UMP conversion. The total conversion requires approximately 5...HKP-02285$999.95 -
Out Of Stock
HKP HK UMP (9mm) Conversion Kit -Threaded 1/2 x 28
HKP HK Parts
$679.95HK UMP 9mm Conversion Kit - Threaded Barrel 1/2 x 28 9mm UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those that have already done the USC-UMP conversion. The conversion parts are drop...HKP-02287$679.95 -
Out Of Stock
Tommy Built HK G36C .300 BLK Conversion Kit
Tommy Built
$874.95HK G36C 556/223 To .300 Blackout Caliber Conversion - USA The Tom Bostic .300 BLK conversion barrel set up is designed to drop in any G36C or Sl8 to G36C conversion and reuse your G36C op-rod/spring set, gas piston & barrel nut. Each set up comes...HKP-18268$874.95