Accessories | Homeland Defense Police Supply https://www.hdps.org H&K HK PARTS USC UMP SL8 G36 Block B Rail set Conversion parts and services Wed, 04 Mar 2026 23:03:35 +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 Accessories | Homeland Defense Police Supply https://www.hdps.org 32 32 UMP Drop In Auto Sear Delete – DIAS-D https://www.hdps.org/product/ump-drop-in-auto-sear-delete-dias-d/ Wed, 04 Mar 2026 23:01:51 +0000 https://www.hdps.org/?post_type=product&p=5657 HECKLER AND KOCH UMP LOWER RECEIVER AUTO DIAS DROP IN  DELETE This is a DIY, removing the Auto Sear and ALL models of HK UMP lowers and replacing with this Carbon Fiber block. That alone will free you from any legal worries]]>

]]> 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"]]> Heckler and Koch SL8 to G36 Stock Block Screws Set https://www.hdps.org/product/heckler-and-koch-sl8-to-g36-stock-block-screws-set/ Fri, 26 Apr 2024 19:23:19 +0000 https://www.hdps.org/?post_type=product&p=5205 USA made by HDPS - Long Steel thumb flat (can use a coin) screw and eyelet screw for Hk SL8  G36 Blocks (pair)]]> USA made by HDPS - Long Steel thumb flat (can use a coin) screw and eyelet screw for Hk SL8  G36 Blocks (pair)]]> ACR Stock original Bushmaster (NEW) https://www.hdps.org/product/acr-stock-for-hm/ Mon, 08 Apr 2024 17:01:19 +0000 https://www.hdps.org/?post_type=product&p=5184 Brand New Bushmaster ACR Stock, dicontinued and no longer available...some sellers at GB are selling for $800 to $1K "used" Your very LAST chance to get it]]>

]]> CZ BREN 2Ms 5.56 Cal 8″ Barrel SBR with CZ .922r compliant RARE FIND NEW https://www.hdps.org/product/cz-bren-2ms-5-56-cal-8-barrel-sbr-with-cz-922r-compliant-rare-find-new/ Tue, 20 Feb 2024 03:09:07 +0000 https://www.hdps.org/?post_type=product&p=5136 FOR THOSE THAT ONLY WANT THE BEST! Up for sale NIB CZ BREN 2Ms Short Barreled Rifle (NFA) on eForm 2 and ready to transfer to your Class 3 Dealer on a eForm 3 (is taking 1~2 days for eForm 3 approvals) SBR done correctly by HDPS CORP custom shop using original factory CZ 922.r Compliance parts for its legality. Note that these CZ 922.r compliance parts kit are not in stock for over an year and it is discontinued. If you find one, it will be well over $600. You can piece toguether  U.S. made complaince parts and the total will be around that as well, or more, just the handguard is over $200, the folding stock is $250, flash suppressor, sear, gas piston ....do the math!  The weapon you see is the weapon for sale, no surprises, it has Tritium night sights, extra magazine (total two), a venom Flash Hider Based on the select-fire Bren 2, this handy firearm operates via a short-stroke gas piston system with a return spring contained within the action itself. A true lightweight, the Bren 2 has an aluminum upper and a lower made of carbon fiber composite. The Ms designation means that it employs a modular forend that can be swapped to different lengths or styles based on user preference/need. Its non-reciprocating charging handle stays stowed in the forward position until it is needed and is swappable from side to side. An AR-style bolt catch/release system is mirrored on both sides of the firearm, as well as a catch/release nestled into the front of the trigger guard. The magazine release and safety are also ambidextrous.]]> FOR THOSE THAT ONLY WANT THE BEST! Up for sale NIB CZ BREN 2Ms Short Barreled Rifle (NFA) on eForm 2 and ready to transfer to your Class 3 Dealer on a eForm 3 (is taking 1~2 days for eForm 3 approvals) SBR done correctly by HDPS CORP custom shop using original factory CZ 922.r Compliance parts for its legality. Note that these CZ 922.r compliance parts kit are not in stock for over an year and it is discontinued. If you find one, it will be well over $600. You can piece toguether  U.S. made complaince parts and the total will be around that as well, or more, just the handguard is over $200, the folding stock is $250, flash suppressor, sear, gas piston ....do the math!  The weapon you see is the weapon for sale, no surprises, it has Tritium night sights, extra magazine (total two), a venom Flash Hider Based on the select-fire Bren 2, this handy firearm operates via a short-stroke gas piston system with a return spring contained within the action itself. A true lightweight, the Bren 2 has an aluminum upper and a lower made of carbon fiber composite. The Ms designation means that it employs a modular forend that can be swapped to different lengths or styles based on user preference/need. Its non-reciprocating charging handle stays stowed in the forward position until it is needed and is swappable from side to side. An AR-style bolt catch/release system is mirrored on both sides of the firearm, as well as a catch/release nestled into the front of the trigger guard. The magazine release and safety are also ambidextrous.]]> B&T APC UMP USC CONVERSION FOLDING STOCK – Brugger & Thomet (made in Swiss) https://www.hdps.org/product/bt-apc-ump-usc-conversion-folding-stock-brugger-thomet-made-in-swiss/ Mon, 05 Jun 2023 19:46:36 +0000 http://hdps.org/?post_type=product&p=4873 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 B&T APC UMP USC CONVERSION FOLDING STOCK - Brugger & Thomet (made in Swiss) Will fit ALL B&T APC Models in all calibers. Can be used for your USC to UMP conversion if you want a shorter stock than the HK UMP stock. Be aware that this stock will work perfectly with the Block B, but because was not made for the UMP it will leave a small gap between stock and block back wall or real UMP receiver end.]]> 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 B&T APC UMP USC CONVERSION FOLDING STOCK - Brugger & Thomet (made in Swiss) Will fit ALL B&T APC Models in all calibers. Can be used for your USC to UMP conversion if you want a shorter stock than the HK UMP stock. Be aware that this stock will work perfectly with the Block B, but because was not made for the UMP it will leave a small gap between stock and block back wall or real UMP receiver end.]]> ATI 5 Position Vertical Grip – Variable Vertical Foregrip https://www.hdps.org/product/ati-5-position-vertical-grip-variable-vertical-foregrip/ Thu, 01 Jun 2023 22:01:43 +0000 http://hdps.org/?post_type=product&p=4864
ATI 5 Position Vertical Grip - Variable Vertical Foregrip
ATI 5 Position Vertical Grip - Variable Vertical Foregrip - Image 2
ATI 5 Position Vertical Grip - Variable Vertical Foregrip - Image 3
ATI 5 Position Vertical Grip - Variable Vertical Foregrip - Image 4
ATI 5 Position Vertical Grip - Variable Vertical Foregrip - Image 5

ATI 5 Position Vertical Grip – Variable Vertical Foregrip

$29.75

ATI 5 Position Vertical Grip

Push button Variable Vertical Foregrip for Picatinny Rails

Made in USA – Lifetime Warranty

Out of stock

Categories: , , ,

Additional information

Weight 0.5 lbs
Dimensions 8 × 6 × 2 in

Related products

]]> FAB Defense Vertical Grip – 7 Position Vertically Folding Foregrip https://www.hdps.org/product/fab-defense-vertical-grip-7-position-vertically-folding-foregrip/ Thu, 01 Jun 2023 21:25:35 +0000 http://hdps.org/?post_type=product&p=4855 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!!
]]> 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
]]>