Bushmaster Carbon AR15

[dleiwig]

I got a Carbon Bushmaster a couple of months ago and love it. Haven't had any issues with it except for one FTE, but I was shooting cheap, steel cased stuff (TulAmmo). The only complaint I have with it is concerning the magazine well--it won't drop magazines freely. I've tried various magazines (metal and PMags) and it won't drop any of them. I thought it may just be tight because it's new, but I've put 750+ rounds through it and it's not loosening up. Since it's carbon, I thought about using some very fine sandpaper inside the mag well, but am reluctant to do that. Any suggestions?

[gigag04]

Do it at your own risk IMO.

[RSJ]

I wonder if loosening the screw that goes through the magazine release button would help?

[MoJo]

Try some silicon spray lube on the inside of the magwell. It stays slick even when dry. I'm thinking that might be a safer alternative to sandpaper. Put the spray on a cloth and wipe the inside of the magwell and see if that helps.

Another thing you might do is sit down and insert and remove a magazine a bunch to see if that loosens anything up.

[psijac]

This may be a stupid question: if steel case ammo is so bad why do they keep making the stuff?

[Dave2]

This may be a stupid question: if steel case ammo is so bad why do they keep making the stuff?

Steel is cheeper than brass.

[Longshot38]

This may be a stupid question: if steel case ammo is so bad why do they keep making the stuff?

Steel cased ammunition is not bad. The steel has never been a problem rather the coating on the case and the primers are what has caused the problems of the past.