Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
4/9/2016 10:33:56 PM EDT
I picked up a new , Colt , M4 , heavy carbine barrel at the Knob Creek machine gun shoot today for $100 for a carbine build.  It has one notch for a taper pin already cut , and the gas hoe drilled . Do I need to find a Colt carbine base/gas block, or are the dimensions standardized and any carbine base should work ? Thanks, JR
4/9/2016 11:29:23 PM EDT
[#1]
Quoted:
I picked up a new , Colt , M4 , heavy carbine barrel at the Knob Creek machine gun shoot today for $100 for a carbine build.  It has one notch for a taper pin already cut , and the gas hoe drilled . Do I need to find a Colt carbine base/gas block, or are the dimensions standardized and any carbine base should work ? Thanks, JR
View Quote

Short answer is no pre-drilled FSB will work, Colt or otherwise. They are drilled together. You would need to send it to a gunsmith.
4/10/2016 10:27:40 AM EDT
[#2]
Thanks for the response. I guess I'll use a gas block and a screw on front sight > JR
AR Sponsor