Sherman, TX. / Storyteller / Jan 29, 2026 /
AR15Parts.com now offers complete upper assemblies in 20 distinct calibers, positioning the Denison-based retailer among the most comprehensive sources for AR-15 and AR-10 platform customization in the United States. The selection spans calibers ranging from the flat-shooting 204 Ruger to the heavy-hitting 50 Beowulf, with each configuration built using barrels from manufacturers including Wilson Combat, Satern, Shaw, and Ballistic Advantage.
The expanded caliber lineup addresses a growing demand among firearm owners who use the AR platform for applications beyond traditional 5.56 NATO configurations. Hunters pursuing whitetail and feral hogs have driven increased interest in calibers like 6.8 SPC II, 350 Legend, and 450 Bushmaster, while precision shooters seeking sub-MOA performance at extended ranges have gravitated toward 6.5 Grendel, 6mm ARC, and 6.5 Creedmoor options. The company currently stocks 270 upper assembly products across these 20 calibers.
"Most retailers stock four or five caliber options and call it a day," said the Operations Manager atAR15Parts.com. "We maintain inventory in 20 calibers because a varmint hunter in West Texas needs something completely different than someone building a suppressed 300 Blackout for home defense. The whole point of the AR platform is adaptability, and limiting caliber selection defeats that purpose."
The available calibers include 12.7x42, 204 Ruger, 22 ARC, 223 Wylde, 224 Valkyrie, 243 Winchester, 260 Remington, 300 Blackout, 308 Winchester, 338 ARC, 350 Legend, 450 Bushmaster, 458 SOCOM, 50 Beowulf, 5.56 NATO, 6mm ARC, 6.5 Creedmoor, 6.5 Grendel, 6.8 SPC II, and 7.62x39. Each complete upper ships with matched components and can be configured with customer-selected optics, rails, muzzle devices, bolt carrier groups, and charging handles.
Recent additions to the inventory include the 338 ARC and 22 ARC, two cartridges that have gained traction among long-range shooters seeking improved ballistic performance from the AR-15 platform. The 22 ARC delivers velocities approaching those of the bolt-action 22-250 Remington while maintaining semi-automatic functionality, making it particularly suited to varmint control applications where rapid follow-up shots matter.
All uppers are assembled at the company's 4000 Texoma Parkway facility in Denison and shipped the next business day on most orders.AR15Parts.com offers free shipping on orders exceeding $99, backs products with a 30-day return policy, and provides a one-year warranty covering defects in materials and workmanship. The company has accumulated more than 1,700 five-star customer reviews.
About AR15Parts.com
AR15Parts.com is a Denison, Texas-based retailer specializing in AR-15 and AR-10/LR308 parts, accessories, and custom-built upper assemblies. The company stocks components from manufacturers including Wilson Combat, Satern, Shaw Barrels, Ballistic Advantage, Aero Precision, and FailZero. Customer service is available Monday through Friday from 8:00 AM to 4:00 PM Central Time at (888) 706-0633.
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Media Contact
Address: 4000 Texoma Pkwy Denison, TX 75020
Phone: (888) 706-0633
Website: https://ar15parts.com/
