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CMMG, Inc BANSHEE 300 Series Upper Receiver Group
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Most Helpful Positive Review Faster than factory direct
I originally ordered this from CMMG and they backordered me 10 weeks then canceled my order without saying anything. I ordered from optics planet and got the item in a couple days, which was a way better customer experience. Be cautious, as I accidentally ordered 10 round magazines instead of 30 round magazines. They look the same and I didn't read the description.
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Works like a dream!

by Ben Dejo, Verified Owner from NV, United States Written on January 22, 2022
I purchased a 300 Blackout upper to complete an SBR/PDW and she works like a dream! Add a suppressor and it makes a fun rig indoors and out. Exactly as advertised and quick delivery, exactly what the doctor ordered.
Best Used for:
  • PDW and Plinking
Would recommend: Yes
1 of 1 found the following review helpful.
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Great for plinking

by Daniel, Verified Owner from VA, United States Written on June 25, 2021
Originally I attempted to order this from CMMG, but the lengthy backorder led me to cancel once I saw it here. I ordered, but right after I ordered it they changed the status to being a backordered item (not really surprised). I waited until June, it shipped, but then of course USPS let it sit 10+ days at a facility even though it was mailed 2 day priority. Finally, I got it today, went to the range with my Daniel Defense DDM4 PDW, swapped the uppers, zeroed my new red dot and had a blast while shooting inexpensively, especially when compared to what 300 blackout would cost if I could even find the ammo. I put 350 rounds of various 22lr through this without a single issue. I have no complaints in regards to accuracy or functionality. Thank you CMMG and Optics Planet for allowing me the opportunity to have fun with my AR pistol again.
Would recommend: Yes
1 of 1 found the following review helpful.
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Awesome for plinking/ practice

by shooterMegavin, Verified Owner from OR, United States Written on October 2, 2020
Love this thing. My brother has had one for about a year now and has it built with binary trigger and suppressor. With correct optic we’ve shot 100 yards no problem. I bought mine and run a red dot and it’s a blast. I’ve been having lite strikes but I believe it is my trigger. Would definitely recommend this thing. Great for kidding my wife involved in target practice as well!
Pros:
  • cheap ammo
Cons:
  • None
Would recommend: Yes
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