9mm M1s were on the market at least 30 years ago. I've now seen one of these carbines. For the old price, a good deal. Over $500 not so much. It's maybe a tad better built than Keltec, IMHO. It's miles ahead of a Hi-Point but nowhere near the $1000 carbines. It's an M1 approximation. It's plastic where it can be (mag well, trigger guard, barrel band/bayonet lug) with sheet metal stampings too (front sight). This can be best described as a 9mm in M1 pattern than an M1 in 9mm. However, it's an important niche firearm and should prove popular.