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Glock

Glock Parts & Accessories

Upgrade your Glock with premium aftermarket parts and accessories. At Us2a Arms, we carry custom Glock slides, barrels, triggers, and performance upgrades for popular models including Glock 17, Glock 19, Glock 43, and more. Whether you’re looking for improved accuracy, a smoother trigger pull, or a personalized build, our Glock parts are designed to perform.

Shop Glock Parts & Accessories at Us2a Arms

Build it your way with proven aftermarket parts for the most popular Glock models. From slide assemblies and match-grade barrels to triggers, sights, and small parts, we curate components that balance reliability, performance, and value—so your build runs right from day one.

Popular Glock Models We Support

  • Glock 17 (Gen3–Gen5)
  • Glock 19 (Gen3–Gen5, incl. 19X)
  • Glock 26 (Gen3–Gen5)
  • Glock 34 (Gen3–Gen5)
  • Slimline: Glock 43, 43X, 48

Top Categories

  • Slides & internals: optic-ready cuts, improved serrations, complete upper options
  • Barrels: match-grade, threaded, conventional or polygonal rifling
  • Triggers & internals: connectors, springs, drop-in kits for cleaner breaks
  • Sights & optics: night sights, fiber optics, red-dot mounting solutions
  • Frames, grip & control: backstraps, texture upgrades, magwells, pins
  • Magazines & baseplates: OEM and performance extensions
  • Springs & small parts: maintenance kits to keep your Glock running

Fitment & Compatibility

Always verify the part matches your exact model and generation (Gen3–Gen5 and Slimline frames have important differences). Product pages note specific fitment, slide length, and any optic footprint compatibility.

Why Us2a Arms

  • Focused selection: components we trust and use
  • Clear compatibility notes and support
  • Fast, careful shipping
  • Fair pricing and rotating promos

Pro Tips

  • If you’re adding a red-dot, confirm the optic footprint (RMR, RMSc, etc.) and co-witness height.
  • Threaded barrels typically require a thread protector; check local compliance.
  • After trigger or spring changes, function check and test with your carry ammo.

Legal & Trademark Notice: All parts should be installed and used in accordance with applicable laws and manufacturer guidelines. GLOCK is a trademark of Glock, Inc. and Glock Ges.m.b.H. Us2a Arms is not affiliated with or endorsed by Glock, Inc. or Glock Ges.m.b.H.

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