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View Full Version : Galati XM177 Upper Question Regarding Shooting 5.56


Uranium238
06-09-2012, 11:04 PM
I have had this XM177 upper from Galati International for quite sometime and have put several rounds of 223 down the barrel. I would like to try some 5.56 surplus I picked up, but wanted to make sure it is safe to shoot. I bought the upper back in 2009 from Galati. I checked the barrel markings and all I see is "M1S 1/9" stamped on it; no indication of whether or not it shoots 5.56 let alone even indicating 223 on it. I am guessing this barrel is from Model 1 Sales and is the supplier to Galati International.

Does anyone have any experience with Galati uppers and shooting 5.56 through them? The barrel is chrome moly in my assembly.

Uranium238
06-12-2012, 7:40 AM
bump