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16,125 Posts
Anybody use them? Good, bad or indifferent?
Weeeeell, if you kneW what you were talking about it might be sound advice but since the "bolt" never actually touches the hammer i'd say your full of poopoo. The hammer actually strikes the firing pin, NOT THE BOLT. PLEASE IF YOUR GONNA OFFER UP ADVICE, KNOW WTF YOUR TALKING ABOUT, IT'S TO CONFUSING FOR FOLKS THAT ARE JUST LEARNING.Only thing I can add is ,if a upper is sloppy that as the hammer strikes the bolt it drives the upper out of sight alinement putting the bullet off down range. So point of impact may very by the amount of slop. I have a tight fitting unit that gets 3/4" groups with hand loads an I believe if there is no slop your groups will be better. 1 vote for
the bolt is part of the upper as is the firing pin so if the upper is slopping around in the lower, when the hammer hits the BOLT it can cause the upper to shift an it doesn't take much movement to throw the bullet off the sighted pathway. Maybe that is why a military Ar16 can walk out the factory door with 4" /100yd spread . It can not excide that . So bud do you own one an have you ever had it apart because I know how mine works. I believe uppon striking the firing pin the hammer comes to rest on the bolt then as the bolt moves back the bolt over travels the hammer to lock it back for next round. The firing pin is free floating an nearly rests on the primer , the firing pin protrusion meaning the point that it is stopped by the bolt is only about .35 to .055 but don't hold me to that it's been awhile . So at sometime in this process that bullet is not going to hit the target dead center everytime if your gun is sloppy.Weeeeell, if you kneW what you were talking about it might be sound advice but since the "bolt" never actually touches the hammer i'd say your full of poopoo. The hammer actually strikes the firing pin, NOT THE BOLT. PLEASE IF YOUR GONNA OFFER UP ADVICE, KNOW WTF YOUR TALKING ABOUT, IT'S TO CONFUSING FOR FOLKS THAT ARE JUST LEARNING.
Look buddy, I'm not gonna sit here and debate with you the inner workings of a platform that I have been building and firing for the better part of 20 years. The fact is the HAMMER never touches the BOLT on the AR15 or the military M16. The HAMMER drops on the FIRING PIN. The HAMMER DOES ride on the bottom of the BOLT CARRIER while the BOLT sits nestled in the BOLT CARRIER, the BOLT really only comes in contact with the BARREL EXTENSION. Once the BOLT is locked up in the BARREL EXTENSION you drop the HAMMER on the FIRING PIN.the bolt is part of the upper as is the firing pin so if the upper is slopping around in the lower, when the hammer hits the BOLT it can cause the upper to shift an it doesn't take much movement to throw the bullet off the sighted pathway. Maybe that is why a military Ar16 can walk out the factory door with 4" /100yd spread . It can not excide that . So bud do you own one an have you ever had it apart because I know how mine works. I believe uppon striking the firing pin the hammer comes to rest on the bolt then as the bolt moves back the bolt over travels the hammer to lock it back for next round. The firing pin is free floating an nearly rests on the primer , the firing pin protrusion meaning the point that it is stopped by the bolt is only about .35 to .055 but don't hold me to that it's been awhile . So at sometime in this process that bullet is not going to hit the target dead center everytime if your gun is sloppy.