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Old 02-07-2013, 12:14 PM   #11
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Lots of lower end makers only locktite or just torque without staking. Under heavy use the bcg can get hot enough to melt red locktite and the violent stress of heavy use and heat will loosen a simple torqueing. Thats why people building to last look for properly staked carriers.

All it takes to stake a carrier is a center punch and a hammer. Bcg assemblers have staking machines that make it fast and easy.

One of the big important features often over looked is the chromed inside of the bcg where the bolt sits. If thats not chromed its going to clog up under heavy use and cause fail to go into battery issues. Cheap bcgs from the likes of dpms and bushmaster also skip this step to save on costs.

Nonchrome nonstaked isnt an issue for range plinkers who arent going to fire hundreds to thousands of rounds or more per range session.

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Old 02-07-2013, 12:31 PM   #12
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When I was in basic training my M16 would only fire as a single shot. I had to pull back on the charging handle after each shot. It cost me being able to qualify the first time around. When I took it to the armoror he pulled the bolt carrier group. The bolts were not staked and were really loose. He tightened them up and staked them while I was standing there. He gave me back the rifle. I qualified expert. But didnt get credit for it because I boloed the first time. Very educational experience.

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Old 02-14-2013, 04:31 PM   #13
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Quote:
Originally Posted by Quentin View Post
Keeps the screws tight that secure the gas key. You get short stroking if the key loosens. If it gets real bad the key and gas tube can self destruct upon impact.
More than likely though, you will just end up with what basically amounts to a bolt action rifle, with a little lower velocity because the gas that would have gone into cycling your bcg to lock your hammer to the rear is just going out the side of your gas key. Not dangerous most of the time, but aggravating as hell. When I was in BNCOC in 2006, the cadre disabled the gas system of our M16's so we had to pull the charging handle back every time, and Soldiers who were used to qualifying sharpshooter and expert every time were ending up barely qualifying or bolo. One of our instructors was a POW in 2003, and he said that because of the sand and not being fielded cleaning kits, that is what happened to them. Their weapons wouldn't cycle, and they had to manually charge the weapon each round.
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