D54/10 A1 Pistol

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  • Properly rolled and welded upper receiver with the finest attention to detail
  • Integral receiver top 1913 picatinny rail
  • Free-floating 16-flute cold hammer forged 3-lug barrel
  • Barrel features HK 3-lug pattern with metric 14 x .75 threaded muzzle
  • Muzzle thread protector is included
  • Tungsten filled sear-ready bolt group
  • Enhanced recoil reduction system
  • Spring-loaded anti-rattle magazine release
  • DTAC Modular Handguard System featuring 11 full and 5 half length M-LOK slots
  • SEF Navy-style trigger group (semi auto)
  • 30 round polymer straight detachable magazine
  • A1 endcap with sling swivel (pistol) or A2/A3/A5 stock (SBR)
  • Sights: Rear rotary drum; Front hooded post
  • Fully parkerized with HK Black Duracoat final finish
  • SSR™ Technology


  • Caliber: 10mm AUTO
  • Barrel length: 8.9″
  • Barrel twist: 1:15 with 6 right-hand grooves
  • Operation: Semi-automatic roller-delayed blowback