Custom firearm parts / Gun Parts Machining

Get inspired by our custom machining part projects and contact us to get instant quote for Firearm Parts / Gun Parts (receivers . folding stocks . muzzle devices . thread adapters . furniture . valves . pistons . springs . firing pins . trigger parts . fasteners . bayonets . mags) parts start from 1pcs.

3Q MACHINING is proud to have earned its stripes serving global gun component / firearm part shops for more than 10 years. The result is a set of benefits uniquely tailored to firearm part needs:

Precision CNC Machined Firearm Parts:

Machining options
– The exceptional precision of CNC Swiss machining, multi spindle automatics and CNC turning centers are interfaced with an Esprit CAD/CAM system to precisely produce the most elaborate geometries (complete equipment list).

Alternative materials – 3Q Machining is known for its ability to machine materials other manufacturers won’t, including titanium, plastics and exotic alloys that meet the special requirements of advanced weapons systems.

You are invited to experience this mission-critical capability firsthand. Contact us for a prompt response to your military machining project.

custom cnc machining firearm parts

Custom Gun Parts Machining Projects

Welcome to the 3Q MACHINING – custom gun part maker in China with advanced 3-4-5 axis CNC Machines.

As you may realize, we 3Q MACHINING manufactures different types of high precision machined parts especially the custom Rifle/Pistols/Shotguns gun parts / firearm parts. We’re a manufacturing company that’s focused on making the best quality parts according to your CAD drawing / 3D drawings. We enjoy great relationships with many other gun dealers and manufacturers around the world.

Thanks so much to all customers who have made purchases, provided feedback and driven our product development over the years!

muzzle devices

Muzzle Brake
Thread Pattern: 1/2-28 RH Length: 2.180 inches Caliber .223 Exit hole: .280 inches Machined from top quality steel and finished in black oxide.
Muzzle Brake
Type: Muzzle Brake Length: 2.520 inches Thread Pattern: 1/2-28 RH CALIBER: .223 Exit hole .260 inches Machined from top quality steel and finished in black oxide.
Birdcage Flash Hider
Birdcage style flash hider with 1/2-28 RH threads to fit most ARs. This high quality part is finished in black oxide. Length: 1.750 inches.

Thread Adapters

RH Thread Adapter
This adapter will allow you to mount 1/2x28 RH muzzle devices to a barrel with a 1/2x20 RH thread pattern. Machined to accept 7.62/.30 cal rounds and smaller.
RH Thread Adapter
This adapter is intended to adapt M22x1.5 muzzles with M15x1 RH muzzle devices. Made from steel and finished in black oxide.
RH Adapter
The adapter offers two large flats for tight installation and preserves the full front shoulder for squaring and securing the muzzle device.


AK Gas Valve and Nut
This adapter will allowThis is a gas valve for Yugoslavian AK rifles (M70s). The valve is precision machined and heat treated from 4140 bar stock. It is an exact replacement part and solves the most common problem with guns that won’t cycle consistently.
SKS Gas Valve Kit
This is a gas valve for Yugoslavian SKS 59/66 rifles. This valve is precision machined and heat treated from a top-grade non-corrosive steel. It is an exact replacement part and solves the most common problem with guns that won’t cycle consistently.
Adjustable Gas Valve
Custom made adjustable gas valve from top quality China firearm part manufacturer - 3Q Machining, we made parts based on your CAD drawing and conduct full inspection before shipment to your gun stores with UPS/FEDEX/DHL as fast as 5 working days.


PAP M85 Gas Piston
Overall Length: 4.920 inches. Length under head: 4.390 inches. This piston is for PAP M85's. Polished stainless steel construction make it durable
Gage Gas Piston
SAIGA 12/20 gage Gas Piston: This is the ‘puck’ type gas piston for SAIGA shotguns. Heat treated 416 SS, CNC lathe made precision ground all over.
Gas Piston
Overall Length: 1.930 Length without thread: 1.400 Length under head: 1.220 inches. Standard AK Thread Finish: Bright Chrome

Firing Pin

MP5 Firing Pin
These pins are precision CNC turned to original OEM specs
K1 Firing Pin
Precision turned replacement firing pin for Daewoo K1 rifles.

Trigger Parts