About AR15Parts.com
AR15Parts.com offers full-service professional gunsmithing at our Denison, TX facility, providing custom assembly, headspacing, and finishing services for AR15 parts and AR15 uppers. Clients ship or bring their components—such as barrels, receivers, and bolt carrier groups—to our shop, where our certified gunsmiths perform detailed inspections, chamber gauging, and torque-to-spec assembly. Gas-block alignment is verified using optical collimators, and dwell-time measurements are recorded to ensure consistent cycling under live-fire conditions. For builds requiring precision accuracy, our match-grade barrels undergo cold-hammer forging or button-rifling treatments to achieve sub-MOA performance, followed by crown profiling to optimize bullet exit. We also offer Cerakote and PVD finishing services, masking and multi-step bake cycles that adhere to Mil-spec color standards or custom patterns. After assembly, each upper is test-fired on a live-fire trap range to confirm reliability, with pressure readings logged for customer records. Finished assemblies are cleaned, lubricated, and packaged with torque-spec documentation and headspace verification certificates. Customers can opt for expedited service with guaranteed completion in 48 business hours. Professional gunsmith services at AR15Parts.com ensure that Denison, TX builders receive drop-in ar15 uppers and parts that are factory-ready, performance-tested, and backed by our no-questions-asked return policy and limited lifetime warranties.