I am fortunate to have access to all kinds of cnc machines.
Best cnc machine for ar lowers.
Most ar 15 lowers on the market today use 6061 because it s easier to mold and quite hard.
They offer coatings in various colors like black od green and desert.
Aero precision uses 7075 t6 machine forged aluminum for the lowers before being hand inspected and then hard coat anodized.
It is larger then the 4660 so perhaps would be better suited for the ar lowers.
There are many other companies who manufacture and machine good lower receivers.
Hi there everyone.
I am currently owning an m1a that is accurate and a precision semi 308 which is a great rifle.
The machine part count is greatly reduced compared to traditional cnc machines which both increases rigidity and decreases cost.
I did not see any ar 10 lowers.
Forged aluminum is best for a heavy duty ar 15 that you plan to use often.
The lower is cnc machined from 7075 t6 aluminum and features details like flared magazine wells pictograph selector markings an easy install set screw bolt catch pin and an upper lower receiver tension screw among other things.
Gg3 employs a horizontal milling format a 9 000 rpm er 11 collet unibody machined spindle and has a machinable area of 9 52 x 3 50 x 3 11 optimized for machining ar 15 and ak 47 receivers.
First stages to machining the ar 15 lower from a big block of 7075 aluminum obviously the little cnc converted mill can t compete with a full sized vmc for production but if all you need is one lower receiver for yourself it s doing a fine job and moves right along.
Best machine for milling engraving finishing 80 lower.
I am looking to finish the 80 lowers but also will use the machine in the future on other small projects.
I developed this website to show gun enthusiast the different types of firearms that can be manufactured using cnc computerized numerical control equipment.
And is built to last then you may have found the best ar 15 lower receiver for you.
I am a mechanical engineer and work for our family s machine shop.
I would like to build a very good 308 my other rifles are very good i just want to build a 309.