New build, jammed round in chamber - need help
#3
If you have a stuck bolt on an AR-15 the suggested method for a stuck bolt with a round in the chamber is to put the safety on. If the gun has a collapsable stock close the stock. Then keeping your face away from the muzzle slam the butt of the rifle against the ground. If the round is really stuck it may take a few good wacks. The inertia should unlock the bolt and free it enough to clear the chambered case. This method is called mortaring. I always remove the magazine before motaring an AR-15.

If you left a loaded steel cased round in the chamber there might be a lot of crud or corrosion. Also if the rifle is really dirty or tight because it is new I’d probably get some Kroil penetrating oil on the carrier and towards the bolt, chamber barrel extension. I’d soak the BCG and rifle for a few hours with penetrating oil before trying to mortar the round out. If you don’t have penetrating oil you can use automatic transmission fluid.

I would not try tapping on the charging handle with a mallet to free the bolt. If your not real careful you can bend or break the charging handle.

With an adjustable gas block you don’t need a heavier buffer, you adjust the gas block to permit enough gas to cycle the action. I would use the standard weight buffer if this is a carbine length buffer tube with the supplied carbine buffer spring.

When setting an adjustable gas block I start with the gas block almost completely closed. I load one round in the mag fire one round. If the round ejects but doesn’t lock the bolt back on the mag catch I open the gas block more until the bolt locks back on an empty mag.

Wolf steel cased ammo produces a light recoil impulse. I useually open the gas block a little more once the bolt locks back with the bolt catch on an empty mag.
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New build, jammed round in chamber - need help - by VASCAR2 - 02-13-2018, 10:29 PM

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