To keep bulk pack 22LR subsonicwill require a maximium barrel length of 4.5" with the Sparrow otherwise stick with CCI Standard velocity to remain subsonic. Nordics have been unobtanium for nearly 2 years, but DPMS's 22 upper is the Nordic bolt design and parts of it are made by Nordic:ĭPMS AR-15 A3 Flat-Top Conversion Upper Assembly 22 Long Rifle 1 16 With the 20" barel installed it is actually heavier than my 3gun competiton upper. Accuracy is pretty reasonable, and it doesn't feel like a 22LR cheapy plastic toy upper. It runs like a champ with almost everything for about 2k rounds, then will need a cleaning. I have a Nordic components NC-22 upper with 20" and 6.5" barrels. It's usually high velocity rounds that are used, and that's a bad thing since I practice in my back yard. Any recommendations? I see a bunch out there, some better reviewed than others, but don't touch on reliability with suppressor and subsonic rounds. I looked at the M&P 15-22 and it was okay I guess, but for $500 I was thinking there was a better upper I could put on and it would feel more like my AR than a different rifle, trigger. It needs to reliably shoot subsonics with my Sparrow suppressor. I am looking for a flat top AR upper that feels AR-15y and not 22 lr-ish. I practice with my 22 bolt action regularly for precision practice, but I have been having so much fun with the AR-15 I bought last year I want to practice cheapish with it (as long as my ammo holds out, anyway.) I almost ordered the CMMG bolt conversion, but read there were accuracy issues, and I wanted to use my Sparrow 22 instead of the 762-SDN-6 I usually have on it for obvious reasons. I've decided to get an 22 lr conversion upper for my AR-15.
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