I just got one of these bad boys in pistol form and am SBR'ing the lower.
https://innovativearms.com/portfolio/iasw-integral/
I brought it to my usual engraver and they told me they cannot engrave M&P15-22 lowers for 2 reasons:
1. Their laser will cut through the polymer.
2. Smith and Wesson use some kind of polymer mix that puts out toxic fumes when they use the laser.
#1 seems plausible enough. #2 is a new one for me.
The gun comes as-is and I cannot use an aluminum receiver, so please no wise-ass remarks. I don't like polymer either and this is my only polymer rifle. I know you guys are relentless with your polymer hate (lol) and it's just a range toy for my kid.
Anyone have experience engraving these? Does anyone know of a competent engraver in South Florida?
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