LugerForum Discussion Forums - View Single Post - Question for the Engineers!!! Luger receivers!!!

JAMES · 02-09-2002, 10:20 PM

The right grade of aluminium alloy might hold up, but remember that Aluminum's coefficient of thermal expansion is different (much higher) than steel. In other words, it expands a lot when it gets hot. The first AR-15's & M16's had this problem. After they shot enough rounds, the receiver would expand and the bolt would lock up in it until it cooled. Also, aluminum can't be blued, but it can be anodized.

02-09-2002, 10:20 PM	#2
JAMES User Join Date: Mar 2004 Location: Lynn, Mass. Posts: 42 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Question for the Engineers!!! Luger receivers!!! The right grade of aluminium alloy might hold up, but remember that Aluminum's coefficient of thermal expansion is different (much higher) than steel. In other words, it expands a lot when it gets hot. The first AR-15's & M16's had this problem. After they shot enough rounds, the receiver would expand and the bolt would lock up in it until it cooled. Also, aluminum can't be blued, but it can be anodized.