birdbustr
Member
I have a Colt M-4. Recently I purchased a spare bolt and carrier assembly from Coleman Tyler (exellent processing and shipping of product). When I received the assembly I noticed a difference between the Colt semi-auto bolt carrier assembly and the "Standard" bolt carrier assembly I received. From what I can tell Colt is the only manufacturer of the AR-15 types that cuts the bottom part of the assembly out, and the rest do not.
More specifically, the rear part of the new bolt has metal that comes underneath the assembly, whereas the Colt factory does not. I have installed and cycled the action and dry fired. I cannot tell any difference in the way the action feels, but I am still a little apprehensive about firing live rounds through this different part. I thought these parts were interchangable, but now I'm not so sure. So will it make any difference?
Here is a link to the new bolt carrier assembly. http://www.colemantyler.com/proddetail.php?prod=URBCADP
Here is a pic of the rear portion of the Colt assembly.
http://www.zediker.com/tubb/images/speedlock/burrclose200.jpg
More specifically, the rear part of the new bolt has metal that comes underneath the assembly, whereas the Colt factory does not. I have installed and cycled the action and dry fired. I cannot tell any difference in the way the action feels, but I am still a little apprehensive about firing live rounds through this different part. I thought these parts were interchangable, but now I'm not so sure. So will it make any difference?
Here is a link to the new bolt carrier assembly. http://www.colemantyler.com/proddetail.php?prod=URBCADP
Here is a pic of the rear portion of the Colt assembly.
http://www.zediker.com/tubb/images/speedlock/burrclose200.jpg