Gunsmithing
Parts Installation & AR/AK Builds
The handguard, gas block, trigger, safety, grip, sling mount, spring kit, or magazine release you already bought — installed correctly, torqued to spec, and function-checked, for a $40 bench fee. And when the box is a whole rifle in pieces, we assemble AR-15s, AR-10s, AKs, and parts-kit builds from the ground up.
Prices, up front
Every bench service and what it costs, in one searchable list. The final number is confirmed before we touch your firearm.
Your parts, installed the way the maker intended
Most of what crosses this bench in a week is a customer's own upgrade: a BCM handguard onto a Daniel Defense, an adjustable gas block on a barrel that needs the retainer fitted to align the tube, a Radian safety and charging handle, a QD end plate and castle nut staked properly, Volquartsen parts in a Mark IV, a spring kit in a Sarsilmaz, a slide lock in a Glock. It's the same $40 bench fee whether the part is ten dollars or four hundred; what you're buying is the torque wrench, the roll-pin punches, the go/no-go gauge, and the function check afterward.
Bring the parts and the firearm — or just the upper, slide, or receiver the part goes on — and tell us what's going where. If a part won't fit, isn't safe, or needs fitting rather than installing, we'll say so at the counter. Parts bought here are usually installed free.
AR and AK builds and assembly
An upper assembled from a parts kit is $75 on the sheet, a lower is $55, and a complete AR or AK built from your parts is $150 — barrel nut torqued, gas block pinned or set-screwed and checked, headspace verified on any barrel and bolt that didn't come as a set, and the whole rifle function-checked and test-fired. AK parts-kit builds — a Yugo M64 on a new receiver, an AK-pattern pistol from a kit — are quoted per kit, because rivets and barrel pressing are more work than an AR.
Conversions are their own line: a Saiga 12 to an AR-style stock and pistol grip with the trigger group moved forward, a shotgun's safety bypass deleted for competition, a left-hand ejection swap. Quoted from the parts list; the Saiga jobs typically run about $250 in labor.
How a parts job runs here
Check the parts
We confirm every part fits the firearm it's going on and flag anything that will need fitting, machining, or a different part before work starts.
Install and torque
Parts go on with the correct tools and are torqued to the maker's spec — staked, pinned, or thread-locked where the design calls for it.
Gauge and function-check
Headspace is gauged on any new barrel-and-bolt pairing, the action is function-checked, and the firearm is test-fired where the parts warrant it.
Answers
Common questions
Is it really $40 for any part?
For a straightforward install, yes — one bench fee covers the job even if it's two or three small parts going on at once. It stops being a bench-fee job when the part needs fitting, machining, or a headspace check, and we'll quote that separately before we start. Parts you bought here are usually free to install.
Will you build an AR from parts I ordered online?
Yes. Bring everything — upper, lower, barrel, bolt carrier, gas system, furniture — and we'll assemble it, gauge the headspace, torque the barrel nut, and test-fire it. Missing a part or ordered the wrong gas tube length? That's caught at the counter, not after you've paid.
Can you finish my AK parts kit?
Yes, with a receiver that's legal to build on and a kit that's complete. Barrel pressing, headspacing, riveting the trunnions, and a function check are a proper build rather than a parts install, so it's quoted per kit. Ask about parkerizing or Cerakote for the finished rifle while it's apart.
Elsewhere on the bench
More from the shop
NFA Center
Silencer sales plus Form 1 and Form 4 filing, ATF fingerprints, passport photos and gun trust notary — handled at one counter in Roswell.
Explore →04 servicesFinishing & Metalwork
Durable firearm finishes done in-house: Cerakote and stencil work, laser engraving, anodizing and parkerizing.
Explore →04 servicesRestoration
Restoration of M1 Carbines and Garands, Mosin Nagants and 1911s to correct configuration — plus fire and water damage documented for an insurance claim.
Explore →05 servicesLogistics & Commerce
Inbound FFL transfers, outbound firearm shipping, bulk ammunition, and FFL08 importation with Form 6 filing and CBP clearance.
Explore →Bring us the project.
Start an NFA transfer, ask about a service, or send photos for an estimate. We answer fast.