NFA and All Other Parts | Homeland Defense Police Supply https://www.hdps.org H&K HK PARTS USC UMP SL8 G36 Block B Rail set Conversion parts and services Fri, 18 Apr 2025 18:43:04 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.hdps.org/wp-content/uploads/2020/10/cropped-hdps-favicon-32x32.png NFA and All Other Parts | Homeland Defense Police Supply https://www.hdps.org 32 32 Heckler and Koch factory German UMP Foldind Stock https://www.hdps.org/product/heckler-and-koch-factory-german-ump-foldind-stock/ Sat, 31 Aug 2024 21:20:52 +0000 https://www.hdps.org/?post_type=product&p=5331 HK UMP Folding Stock, Real factory German made not U.S. after market made *be careful with lower prices, you get lower quality"]]> HK UMP Folding Stock, Real factory German made not U.S. after market made *be careful with lower prices, you get lower quality"]]> UMP HDPS 7.87″ THREADED .578×28 RH  STAINLESS STEEL FINISHED IN CERAKOTE BARREL for HK UMP AND USC (Compliance Part) (Copy) https://www.hdps.org/product/ump-hdps-7-87%e2%80%b3-threaded-578x28-rh-stainless-steel-finished-in-cerakote-barrel-for-hk-ump-and-usc-compliance-part-copy/ Tue, 16 May 2023 18:21:31 +0000 http://hdps.org/?post_type=product&p=4839 IN STOCK!

UMP HDPS 7.87″ THREADED .578x28 RH BARREL - STAINLESS STEEL FINISHED WITH CERAKOTE  FOR HK UMP AND USC

THE BEST BARREL ALL THE WAY AROUND FOR HK UMP or SBR USC Threaded .578x28 RH
Those barrels are made from blanks, turned on centers, machine finish. Stress relieved & Air gaged to +/- .0002″.  Our barrels are an exact reproduction with all German specs. not a low profile barrel. Also, our USC barrels have the same design of the UMP barrel by the chamber face allowing so All barrels are compatible with USC bolt/carrier AND UMP bolt/carrier!!
]]> IN STOCK!

UMP HDPS 7.87″ THREADED .578x28 RH BARREL - STAINLESS STEEL FINISHED WITH CERAKOTE  FOR HK UMP AND USC

THE BEST BARREL ALL THE WAY AROUND FOR HK UMP or SBR USC Threaded .578x28 RH
Those barrels are made from blanks, turned on centers, machine finish. Stress relieved & Air gaged to +/- .0002″.  Our barrels are an exact reproduction with all German specs. not a low profile barrel. Also, our USC barrels have the same design of the UMP barrel by the chamber face allowing so All barrels are compatible with USC bolt/carrier AND UMP bolt/carrier!!
]]> UMP HDPS 7.87″ THREADED .578×28 RH  STAINLESS STEEL FINISHED IN CERAKOTE BARREL for HK UMP AND USC (Compliance Part) https://www.hdps.org/product/ump-hdps-7-87%e2%80%b3-threaded-578x28-rh-stainless-steel-ceracoated-barrel-hk-ump-and-usc/ Mon, 15 May 2023 04:15:17 +0000 http://hdps.org/?post_type=product&p=4819 IN STOCK

UMP HDPS 7.87″ THREADED .578x28 RH BARREL - STAINLESS STEEL FINISHED WITH CERAKOTE  FOR HK UMP AND USC

THE BEST BARREL ALL THE WAY AROUND FOR HK UMP or SBR USC Threaded .578x28 RH
Those barrels are made from blanks, turned on centers, machine finish. Stress relieved & Air gaged to +/- .0002″.  Our barrels are an exact reproduction with all German specs. not a low profile barrel. Also, our USC barrels have the same design of the UMP barrel by the chamber face allowing so All barrels are compatible with USC bolt/carrier AND UMP bolt/carrier!!
]]> IN STOCK

UMP HDPS 7.87″ THREADED .578x28 RH BARREL - STAINLESS STEEL FINISHED WITH CERAKOTE  FOR HK UMP AND USC

THE BEST BARREL ALL THE WAY AROUND FOR HK UMP or SBR USC Threaded .578x28 RH
Those barrels are made from blanks, turned on centers, machine finish. Stress relieved & Air gaged to +/- .0002″.  Our barrels are an exact reproduction with all German specs. not a low profile barrel. Also, our USC barrels have the same design of the UMP barrel by the chamber face allowing so All barrels are compatible with USC bolt/carrier AND UMP bolt/carrier!!
]]> FN PS90 SBR https://www.hdps.org/product/fn-ps90-sbr/ Sun, 18 Dec 2022 00:21:13 +0000 http://hdps.org/?post_type=product&p=4584 FN PS90 Short Barreled Rifle  (transferred to your local FFL/SOT on a Form 3) Chambered in the 5.7x28mm cartridge, the FN® PS90™ utilizes blowback operation and fires from a closed bolt for greater accuracy and reliability. The FN® PS90™’s civilian legal 16.04″ cold hammer-forged MIL-SPEC barrel is equipped with an integrated muzzle brake to reduce recoil. Dual magazine latches, cocking handles and an innovative synthetic thumbhole stock with a molded-in sling attachment point help make the FN® PS90™ fully ambidextrous. Models with 10 or 30-round polymer detachable magazines are available.

SPECS

  • CALIBER: 5.7x28mm
  • OPERATION: Closed bolt, blowback
  • MAG CAPACITY: 10 or 30 rd.
  • WEIGHT: 6.28 lb.
  • BARREL LENGTH: 10.4"
  • STOCK COLOR: Matte Black
  • OVERALL LENGTH: 26.23"

GENERAL SPECIFICATIONS

Semi-auto only

BARREL

10.40" M12x1 LH with extension threaded 1/2x28 tpi accepting all AR-15 flash suppressors and attachments Ported Flash Suppressor

RECEIVER

Bottom ejection port Alloy upper receiver and barrel support

STOCK

Synthetic thumbhole bullpup design Forward handstop Molded-in rear sling attachment point

OPERATING CONTROLS

Ambidextrous charging handles Sliding trigger Ambidextrous safety switch inside trigger guard Enlarged trigger guard Ambidextrous magazine release

MAGAZINE - Translucent polymer body

SIGHT - MIL-STD 1913 accessory rail and back-up iron sight

]]> FN PS90 Short Barreled Rifle  (transferred to your local FFL/SOT on a Form 3)

Chambered in the 5.7x28mm cartridge, the FN® PS90™ utilizes blowback operation and fires from a closed bolt for greater accuracy and reliability. The FN® PS90™’s civilian legal 16.04″ cold hammer-forged MIL-SPEC barrel is equipped with an integrated muzzle brake to reduce recoil. Dual magazine latches, cocking handles and an innovative synthetic thumbhole stock with a molded-in sling attachment point help make the FN® PS90™ fully ambidextrous. Models with 10 or 30-round polymer detachable magazines are available.

SPECS

  • CALIBER: 5.7x28mm
  • OPERATION: Closed bolt, blowback
  • MAG CAPACITY: 10 or 30 rd.
  • WEIGHT: 6.28 lb.
  • BARREL LENGTH: 10.4″
  • STOCK COLOR: Matte Black
  • OVERALL LENGTH: 26.23″

GENERAL SPECIFICATIONS

Semi-auto only

BARREL

10.40″ M12x1 LH with extension threaded 1/2×28 tpi accepting all AR-15 flash suppressors and attachments
Ported Flash Suppressor

RECEIVER

Bottom ejection port
Alloy upper receiver and barrel support

STOCK

Synthetic thumbhole bullpup design
Forward handstop
Molded-in rear sling attachment point

OPERATING CONTROLS

Ambidextrous charging handles
Sliding trigger
Ambidextrous safety switch inside trigger guard
Enlarged trigger guard
Ambidextrous magazine release

MAGAZINE – Translucent polymer body

SIGHT – MIL-STD 1913 accessory rail and back-up iron sight

]]> Heckler and Koch MP5 30 Round Magazine – Genuine Made in Germany – MP5, SP5, MP5K, SP5K, SP89 https://www.hdps.org/product/heckler-and-koch-mp5-30-round-magazine-genuine-made-in-germany-mp5-sp5-mp5k-sp5k-sp89/ Thu, 21 Jul 2022 20:15:52 +0000 http://hdps.org/?post_type=product&p=4430 German – H&K MP5, SP5, SP5K, MP5K 9mm – 30 Round Curved Magazine  – NEW Heckler & Koch German Magazine 9mm 30 Round curved all steel magazine. Made in Germany by Hk
  • HK MP5, SP5, MP5K, SP5K, SP 89 mags are the finest HK  magazines  New factory German magazine.
Compatible with all MP5, MP5K style 9mm firearms such as:
  • HK MP5, SP5, MP5K, SP5K
  • HK94, SP89
  •  MP5 9mm Cloned Variants
  • MP5 style,  clones or other custom builds
]]> German – H&K MP5, SP5, SP5K, MP5K 9mm – 30 Round Curved Magazine  – NEW Heckler & Koch German Magazine 9mm 30 Round curved all steel magazine. Made in Germany by Hk
  • HK MP5, SP5, MP5K, SP5K, SP 89 mags are the finest HK  magazines  New factory German magazine.
Compatible with all MP5, MP5K style 9mm firearms such as:
  • HK MP5, SP5, MP5K, SP5K
  • HK94, SP89
  •  MP5 9mm Cloned Variants
  • MP5 style,  clones or other custom builds
]]> STOCK BLOCK “B” For your Hk USC to Hk UMP conversion (Eyelet and Thumb Screws) https://www.hdps.org/product/stock-block-b-for-your-hk-usc-to-hk-ump-conversion/ Thu, 11 Feb 2021 22:40:21 +0000 http://hdps.org/?post_type=product&p=3539  BACK IN STOCK !!!!! ATTENTION - Be aware that HDPS CORP is the only maker of Conversion Blocks (B and C) for the Heckler and Koch USC to UMP conversion. We have received emails with problematic Blocks made and sold by other manufacturer claiming to be a Block B. MAKE SURE IT IS ENGRAVED as you see in photos to avoid fitting problems with counterfeit Block B's STOCK BLOCK "B"- Come with long cross eyelet/thumb flat screws in black already!!  (We have a cheaper model with a pin/ring instead screws as well. This is the BEST and ONLY way to safely convert your currently Sporter Carbine Hk USC to an Assault Weapon Style Hk UMP Proven quality part since 2003!]]>
Sale!
STOCK BLOCK "B" For your Hk USC to Hk UMP conversion (Eyelet and Thumb Screws)
STOCK BLOCK "B" For your Hk USC to Hk UMP conversion (Eyelet and Thumb Screws) - Image 2
STOCK BLOCK "B" For your Hk USC to Hk UMP conversion (Eyelet and Thumb Screws) - Image 3
STOCK BLOCK "B" For your Hk USC to Hk UMP conversion (Eyelet and Thumb Screws) - Image 4
STOCK BLOCK "B" For your Hk USC to Hk UMP conversion (Eyelet and Thumb Screws) - Image 5
STOCK BLOCK "B" For your Hk USC to Hk UMP conversion (Eyelet and Thumb Screws) - Image 6

STOCK BLOCK “B” For your Hk USC to Hk UMP conversion (Eyelet and Thumb Screws)

Original price was: $195.00.Current price is: $185.00.

 BACK IN STOCK !!!!!

ATTENTION – Be aware that HDPS CORP is the only maker of Conversion Blocks (B and C) for the Heckler and Koch USC to UMP conversion. We have received emails with problematic Blocks made and sold by other manufacturer claiming to be a Block B. MAKE SURE IT IS ENGRAVED as you see in photos to avoid fitting problems with counterfeit Block B’s

STOCK BLOCK “B”– Come with long cross eyelet/thumb flat screws in black already!!  (We have a cheaper model with a pin/ring instead screws as well.

This is the BEST and ONLY way to safely convert your currently Sporter Carbine Hk USC to an Assault Weapon Style Hk UMP

Proven quality part since 2003!

Shipping Insurance

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We encourage the use of PayPal as it is safer, all parts and services can be paid with PayPal, only Firearms cannot. Simply check the PayPal option and you will receive a PayPal invoice, we will only ship to your PayPal address, no exceptions

For Credit Cards we will call the phone number provided and take your CC number over the phone.
For Paypal, we will send invoice to email provided (make sure you use your paypal email address)
For USPS Money Order, send payable to HDPS CORP to HDPS CORP, P.O. Box 491, Cleveland, TN. 37364
For Manual Order Form, please email in a .pdf format to Click Here To Email Us
Manual Order Form Here
Questions? Click Here To Email Us

Sometimes the Web Cart will not combine small items in one shipment (website uses USPS programing which is difficult to impossible to compound multiple items in ONE shipping cost), if you see that the SHIPPING COST IS TOO HIGH, email me. If you choose PayPal as a payment, we will input the correct cost of shipping on PayPal invoice

Categories: , , , ,

Additional information

Weight .60 lbs
Dimensions 7 × 7 × 6 in

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]]> FAB DEFENSE VERTICAL GRIP – Tactical Ventilated Foregrip TAL-4 https://www.hdps.org/product/tactical-ventilated-foregrip-tal-4/ Thu, 11 Feb 2021 22:30:29 +0000 http://hdps.org/?post_type=product&p=3534 Advantages:
  • Quality non-slip design
  • Double side pressure switch housing
  • Water proof anti rattle storage compartment for two CR123 or AA batteries
  • Both quick release mechanism and a secure bolt locking system
  • Designed to fit on all 1913 Picatinny rails
  • Durable & Lightweight fiberglass reinforced polymer construction
  • User installed-no modification or gunsmith required
  • Available in black, olive drab green or desert tan
Compatibility:
  • All 1913 Picatinny or weaver rails (Min' 65mm long)
  • Made in Israel
]]> Advantages:
  • Quality non-slip design
  • Double side pressure switch housing
  • Water proof anti rattle storage compartment for two CR123 or AA batteries
  • Both quick release mechanism and a secure bolt locking system
  • Designed to fit on all 1913 Picatinny rails
  • Durable & Lightweight fiberglass reinforced polymer construction
  • User installed-no modification or gunsmith required
  • Available in black, olive drab green or desert tan
Compatibility:
  • All 1913 Picatinny or weaver rails (Min' 65mm long)
  • Made in Israel
]]> UMP HDPS 7.87″ Barrel Threaded M16X1 LH in Stainless Steel with Cerakote finish (Compliance Part) https://www.hdps.org/product/ump-hdps-7-87-barrel-threaded-m16x1-lh/ Sat, 14 Nov 2020 01:00:51 +0000 http://hdps.org/?post_type=product&p=3083 Heckler And Koch UMP Lower Four Position https://www.hdps.org/product/heckler-and-koch-ump-lower-four-position/ Sun, 08 Nov 2020 00:59:45 +0000 http://hdps.org/?post_type=product&p=3064 Heckler And Koch UMP Lower Four Position

]]> REFINISH SERVICES AR15 and M16 complete upper or complete lower receiver https://www.hdps.org/product/ar-15-and-m-16-complete-upper-or-complete-lower-receiver/ Mon, 31 Aug 2020 15:53:52 +0000 http://hdps.org/?post_type=product&p=2621