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  1. For Sale HK UMP 9mm SBR

    HK LONG GUNS FOR SALE
    Selling my HK UMP9 conversion to clear up some funds and some space in the safe. Rifle is currently registered as an SBR. Comes with two mags. Willing to throw the SIG optic in for the right price. One of the best shooting guns I've ever owned. Stock Block conversion with an SEF bolt. $3000...
    $3,000 USD
  2. My USC conversion

    USC conversion. Promag 15 rounds.
  3. For Sale USC magazines

    HK PARTS AND ACCESSORIES FOR SALE
    1-hk usc 10rnd magazine 4-promag 20 rnd magazine lightly used , would rather sell all 5 together will trade for ump mag/usp 45 mags $10 shipping USPS to conus only
    $75 USD
  4. HK PARTS AND ACCESSORIES FOR SALE
    1. HK USC Stock, new, taken off for UMP build - $35.00 $25.00 SOLD 2. HK USC Trigger housing, no trigger group, empty - $30.00 $25.00 SOLD 3. Removed 4. HK USC 10 round magazines, new (2) - $50.00 each 5. Pro-Mag 20 round USC magazines, new (2) - $25.00 each 6. Magpul SL SP5/MP5 handguard with...
    $100 USD
  5. NON HK FIREARMS FOR SALE
    MK27 MOD 1 complete upper, (MOS cut from glock and OE Trijicon irons). Deltapoint Pro is brand new, Surefire X300 Vampire has seen a couple hundred rounds. Magwell is made by NineX19 and is brand new. FACTR flat trigger is brand new along with both Taran +3 mag extensions. Frame is also brand...
    $1,500 USD
  6. HK LONG GUNS FOR SALE
    SOLD to local buyer. I’m cleaning out the safe and looking to sell my Heckler & Koch USC. This .45 ACP HK USC has a HK UMP folding stock and 2-position HK UMP lower receiver that accepts 25-round magazines. I am the original owner and have not fired the rifle. The rifle is offered with a HDPS...
    $2,300 USD
  7. HK LONG GUN TALK
    Anyone know of a mag clamp that will fit USC magazines? Just one that works as it would seem one made for it doesn't exist.
  8. HK PARTS AND ACCESSORIES FOR SALE
    HK USC Grease Gun mag conversion. This will convert your usc to shoot grease gun mags. It’s just like a stock block conversion for a ump lower/mags but A LOT more economical. Comes with lower, stock, stock block, receiver screws, buffer, USC trigger group, lower pin, and 2 Grease Gun mags...
    $350 USD
  9. HK PARTS AND ACCESSORIES FOR SALE
    Selling a few HK USC items left over from my conversion project. Both items are chambered in .45 ACP and have minimal usage (~200 rounds) and in good condition. 16" barrel - date code: OR2E Price: $175 shipped Bolt with firing pin - date code: OR Price: $400 shipped
    $176 USD
  10. HK PARTS AND ACCESSORIES FOR SALE
    Selling a new never fired Omega Gideon Shadow UMP Receiver. Comes with front and rear sights, 3 rails, cocking tube/lever and ejector. Also comes with the Gideon stock pin and barrel pin. All parts are US made. Asking 600 shipped. Will ship to your dealer.
    $600 USD
  11. HK PARTS AND ACCESSORIES FOR SALE
    Selling this complete bolt group, asking $300+shipping. Thanks
    $300 USD
  12. HK PARTS AND ACCESSORIES FOR SALE
    Looking to sell some leftover items. Price includes shipping CONUS. UMP Stock - $90 USC Barrel - $200 HDPS Faux suppressor - $100 save me the trouble and buy all three $350 shipped.
    $100 USD
  13. WANTED TO BUY HK PARTS AND ACCESSORIES
    UMP 0,1 Lower has been purchased. Only need the USC BCG. Thank you
    $400 USD
  14. WANTED TO BUY HK PARTS AND ACCESSORIES
    Looking for UMP rear section for usc conversion. I would prefer a longer stub but really at this point anything will do. Thank for helping a brotha out!
  15. HK LONG GUN TALK
    Hi HK fam! I am getting ready to send my USC to Tom Bostic for conversion and recently acquired a UMP stub that included the front section as well. Two main questions here: Is the front stub used in Tom’s fuse job? I initially thought there weren’t any differences besides the vents milled in...
  16. HK PARTS AND ACCESSORIES FOR SALE
    All parts are new unless otherwise noted. Please feel free to ask questions or DM me with combine offers on multiple items. These are just parts I've been hanging onto and decided to clear out. For payment I accept USPS Money Orders, teller checks, and personal checks (for personal checks, I...
    $1 USD
  17. HK PARTS AND ACCESSORIES FOR SALE
    Selling a brand new USC receiver. Prefect for your UMP kit build. $950 shipped to your FFL.
    $950 USD
  18. HK PARTS AND ACCESSORIES FOR SALE
    12-30rd UMP mags chambered in .40 all restricted stamped. Excellent condition. $45 each plus shipping. 2- Brand new 10rd USC .45 mags $45 each 1-Brand new USC .45 barrel. Factory takeoff from unfired gun $260 shipped $10 ships up to 6 I accept Zelle, Cashapp, ApplePay
    $45 USD
  19. HK LONG GUN TALK
    What do you guys do with the old stock and mags. Does anyone buy them? I was thinking about making a beer coaster or a Christmas ornament out of the HK on the stock.
  20. HK LONG GUN TALK
    This past weekend I ran some drills. And found the magazine changes on my usc to be rather frequent, and 2 mags to be a little limiting. With h&k 10 rnd mags being pricey and small, and me living in a state with no cap, I've looked into other options. This led me to the ProMag offerings. I have...
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