M17/300blk The only one known of

[krazzzzy8]

Some of you know that I have been working on making my Bushmaster M17s a 300blk with the option to swap the barrel back to 5.56, Well its done and it is awesome, video coming soon

 

[sovietak474u]

sweet! VIDEO I want some video!

 

[300AAC-hoghunter]

Nice

 

[jwhited]

I take it the M17 uses a standard AR15 barrel?

 

[krazzzzy8]

No it is very diff, the barrel extension is diff and every thing is 180 degrees off, threads for barrel extension are the same, plus if you screw something up their are no replacement parts available, there was also quite a bit machine work and fitting for clearance