Gun Parts

Gun Parts

Browse our inventory of gun parts from trusted brands like Anschutz, Bersa, G5 Outdoors, Gear Head Works, and Birchwood Casey. Loftus Firearms carries quality, reliable gun parts built for hobbyist gunsmiths, custom builders, and shooters looking to upgrade, repair, or maintain their firearms. From triggers and barrels to grips, stocks, and small components, we stock a wide range of parts to keep your guns running smoothly and tailored to your preferences. Explore our handguns, rifles, and shotguns to find the perfect platform for your next build or upgrade. Round out your kit with magazines, scopes sights and optics, and ammunition options like rifle ammunition, handgun ammunition, and shotgun shells from our full lineup.

Showing 13–24 of 27 resultsSorted by average rating

Gun Parts Buying Guide

Browse gun parts at Loftus Firearms and find the components you need to maintain, repair, or upgrade your handgun, rifle, or shotgun. From drop-in trigger replacements and aftermarket barrels to serialized lower receivers and platform-specific small parts, our selection covers the most popular firearms platforms in use today.

Shop gun parts at Loftus Firearms by platform to find exactly what your build or repair requires:

  • Handgun parts: Source slides, barrels, frames, triggers, grips, sights, and internal components for the most popular semi-automatic pistol platforms, whether you are upgrading a carry gun or replacing worn parts on a range pistol.
  • Rifle parts: Find stocks, triggers, bolts, barrels, lower receivers, handguards, and a full range of components to build, customize, or maintain bolt action and semi-automatic rifles across the most widely used platforms.
  • AR-15 parts: Shop the full spectrum of AR-15 components including upper and lower receivers, bolt carrier groups, triggers, handguards, buffer systems, and small parts for the most popular modular rifle platform in the country.
  • AR-10 parts: Build or upgrade your AR-10 platform with quality components designed for .308 Winchester and 6.5 Creedmoor configurations, covering lowers, uppers, bolt carrier groups, triggers, and more.
  • Shotgun barrels: Add versatility to your shotgun with a replacement or additional barrel, swapping between field hunting and home defense configurations without the cost of a second firearm.
  • Shotgun chokes: Optimize your shotgun’s pattern for any target and distance with interchangeable chokes, from open cylinder and skeet to modified, full, and extended turkey chokes.

Local And Compliance Notes

Loftus Firearms is the knowledgeable firearms parts source in Hudson, Iowa, and serves customers in the nearby cities of Waterloo, Cedar Falls, Evansdale, Dunkerton, and Jesup. Iowa enacted constitutional carry in 2021 under Senate File 535, allowing law-abiding residents who are legally permitted to possess a firearm to carry openly or concealed without a state-issued permit. Residents who want reciprocity recognition when traveling to other states can obtain an Iowa Permit to Carry Weapons through their county sheriff’s office.

Most gun parts are unregulated accessories that do not require a background check, but certain components are classified as firearms under federal law and require the same transfer process as a complete firearm. Serialized receivers, including AR-15 and AR-10 lower receivers, are legally defined as the firearm and require ATF Form 4473 and a NICS background check at the point of purchase. Buyers of serialized components must meet all applicable federal and Iowa state eligibility requirements. Certain parts regulated under the National Firearms Act, including auto sears and registered machine gun components, are subject to additional federal restrictions and transfer requirements.

Iowa residents should be aware that assembling certain regulated firearm configurations from parts, such as a short-barreled rifle or short-barreled shotgun, without prior ATF approval and a tax stamp is a federal felony regardless of whether each individual part is legal on its own. When in doubt about the legality of a specific parts combination or build project, consult with the staff at Loftus Firearms before proceeding. Store all firearms and components securely at home to prevent unauthorized access, and contact Loftus Firearms directly for guidance on parts compatibility, legal build requirements, or upgrade recommendations for your specific platform.

Welcome to Loftus Firearms, in order to browse our site you must be at least 18 years of age.
Are you at least 18 years old?
No