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Questions & Answers
Would it work with a stern defense mag adapter ? So u could use glock mags instead of arc from cmmg Expert Answer

No, it will only work with the full size AR magazines that have been converted to 9mm.

by Armando R., Gear Expert, March 6, 2020
Will this work on a standard Glock magazine AR9 (Foxtrot Mike lower)? Expert Answer

Yes, they should be compatible.

by Armando R., Gear Expert, November 3, 2019
Customer Reviews
Helpful Positive Review Works like a dream! by Ben Dejo, Verified Owner, 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.
1/1 found this helpful
Helpful Positive Review Awesome for plinking/ practice by shooterMegavin, Verified Owner, 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 bu...
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1/1 found this helpful
Helpful Positive Review Faster than factory direct by Anton, October 22, 2020
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 accid...
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4/4 found this helpful
Helpful Positive Review Great for plinking by Daniel, Verified Owner, 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...
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1/1 found this helpful
Read All 4 Reviews

Product Discontinued by Manufacturer

CMMG, Inc BANSHEE 300 Series Upper Receiver Group has been discontinued by CMMG and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

Product Info for CMMG, Inc BANSHEE 300 Series Upper Receiver Group

CMMG delivers its lightest and most compact firearms within the BANSHEE line of Short Barreled Rifles (SBRs) and AR pistols. Dont let these little guys fool you though. With a wide range of caliber offerings available, theres plenty of firepower in the BANSHEE line. With a variety of different barrel lengths and furniture to choose from, the BANSHEE 100, BANSHEE 200 and BANSHEE 300 series will have the right combination for you when concealment and portability matter the most.image

All BANSHEE 300 series uppers are the shortest configuration that we make in their respective caliber.

ALL NFA RULES APPLY

Package Contents:

  • CMMG, Inc BANSHEE 300 Series Upper Receiver Group

5.56x45mm NATO Ammo

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Firearm Case

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Ammunition

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Gun Parts and Accessories

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Ammo Boxes

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Related Products to CMMG, Inc BANSHEE 300 Series Upper Receiver Group

CMMG, Inc BANSHEE 300 Series Upper Receiver Group Unavailable & Discontinued Models

List of Unorderable Models

CMMG, Inc Upper Receiver Group, BANSHEE 300, MK4, 22LR, 13.5 inch, 4.5 inch Barrel, RML4 M-LOK Handguard, 1/2-28, KAK Flash Can, Black, 22B5B60 , MPN: 22B5B60 , UPC: 816422026340 , Code: 2CM-UFH-BANSHEE300-22B5B60
CMMG, Inc Upper Receiver Group, BANSHEE 300, MKG, .45 ACP Glock, 12.5 inch, 5 inch Barrel, RML4 M-LOK Handguard, .578-28, Thread Protector, Black, 45B694F , MPN: 45B694F , UPC: 816422026371 , Code: 2CM-UFH-BANSHEE300-45B694F
CMMG, Inc Upper Receiver Group, BANSHEE 300, MK4, 5.7x28mm, 12.5 inch, 5 inch Barrel, RML4 M-LOK Handguard, 1/2-28, Thread Protector, Black, 57B18AF , MPN: 57B18AF , UPC: 816422026852 , Code: 2CM-UFH-BANSHEE300-57B18AF
CMMG, Inc Upper Receiver Group, BANSHEE 300, MK4, .300 BLK, 17.4 inch. 8 inch Barrel, RML7 M-LOK Handguard, 5/8-24, Defcan 3 Flash Hider, Black, 30B81E9 , MPN: 30B81E9 , UPC: 816422026357 , Code: 2CM-UFH-BANSHEE300-30B81E9
CMMG, Inc Upper Receiver Group, BANSHEE 300, MK47, 7.62x39mm, 17.5 inch, 8 inch Barrel, RML6 M-LOK Handguard, 5/8-24, Defcan 3 Flash Hider, Black, 76BE85B , MPN: 76BE85B , UPC: 816422026364 , Code: 2CM-UFH-BANSHEE300-76BE85B
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