Hello, I have a Bushmaster 9mm Carbon-15. I've gone about changing it up to suit my needs and this leaves the trigger still to do. I've done a .556 trigger job by adding the S3G on my other AR but i am wondering if there is anything different with a 9mm I need to know? What do you more knowledgeable fellows suggest?
9mm Ar-15 Trigger Work
- Thread starter johhny12gauge
- Start date
Typically Colt pattern ( such as the RRA ) 9mm bolt should be ramped when using with non 9mm hammers . As the non ramped bolt ( not really called a carrier anymore ) moves forward it will bind up so bad that you need to disassembly with takedown and pivot pin
Here is a Colt pattern 9mm bolt
Here is ramped 9mm
The Bushmaster Carbon 15 bolt does not have the offending notch and is therefore essentially ramped ( see below pic )
Therefore you can use any aftermarket FCG. Only caution is some aftermarket triggers are slightly too wide to move freely in the Carbon 15's slot at bottom of reciever . No biggie since it takes a few passes with a file. Check first with trigger /disconnector assembly and see if it drags slightly
Here is a Colt pattern 9mm bolt
Here is ramped 9mm
The Bushmaster Carbon 15 bolt does not have the offending notch and is therefore essentially ramped ( see below pic )
Therefore you can use any aftermarket FCG. Only caution is some aftermarket triggers are slightly too wide to move freely in the Carbon 15's slot at bottom of reciever . No biggie since it takes a few passes with a file. Check first with trigger /disconnector assembly and see if it drags slightly
