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LOL! This sight has always bashed the Colt dedicated .22. My son has over 3000 rounds through his and it has only hiccuped a few times....always with Remington ammo that sucks but this thing eats CCI mini-mags. BTW you can buy the OPS version for 550.00 online, their are companies on this site asking that much for an upper conversion alone... it also is quite accurate as it has a better barrel twist rate for .22 ammo. Is it 6920 quality??? Hell no but it costs half the amount. Also you can buy the SW M4 online for 373.00 PM me if you would like the link. One other thing to consider is the Colt has an adjustable bolt carrier speed on it... it can shoot hyper velocity no problem.
We bash them because they're pot metal trash... didn't you see the pictures of some coming BROKEN new in box? Plus if you want to go the dedicated (rifle) route, the S&W takes normal AR-15 FCG parts, is cheaper, and has a lot better reviews (even the MagPul guys run them)