Customer Reviews for CMMG CMMG .300 AAC Flat Top 16" AR-15 Upper

CMMG CMMG .300 AAC Flat Top 16" AR-15 Upper

Quickly and easily convert your AR-15 lower for shooting the .300 AAC Blackout round. It offers reduced noise levels with sub-sonic ammo and devastating terminal performance for hunting or home defense. This flat-top A3 upper with 1913 Front sight base is optics and flip up sight (MBUS) ready. The 16” barrel provides a 1:7 twist rate for optimum accuracy. Carbine length gas system and handguard is highly maneuverable. It’s compatible with standard AR-15 lowers and magazines. Equipped with A2 style flash hider. Made in USA. Note: This upper will accept both 300 Blackout and 300 Whisper Ammunition.
Overall Customer Rating:
4.75 out of 5
4.8
 out of 
5
(4 Reviews) 4
Open Ratings Snapshot
Rating breakdown 4 reviews
5 Stars
3
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
4 out of 4(100%)reviewers would recommend this product to a friend.
Customer questions and answers:
17 Questions | 40 Answers
Customer Reviews for CMMG .300 AAC Flat Top 16" AR-15 Upper
Review 1 for CMMG .300 AAC Flat Top 16" AR-15 Upper
Overall Customer Rating: 
5 out of 5
5 out of 5
Would you recommend this product to a friend? Yes

Black Out Review

Date:September 26, 2012
This gun is a wicked little monster to hunt or target shoot.Using a 110gr.slug I put 10 holes in a 2 inch circle,at 100 yards,scoped at 200 yards the same
results.A great gun,with a great 30 cal.round.
5 Stars all the way
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Review 2 for CMMG .300 AAC Flat Top 16" AR-15 Upper
Overall Customer Rating: 
5 out of 5
5 out of 5
Country: United States
State: Texas
Age: 46-55
Gender: Male
Would you recommend this product to a friend? Yes

Solid

Date:November 22, 2012
Bought this to go on my carbon lower. Really liked the idea of the up caliber choice to use the combo for Whitetail. I also liked the flexibility of subsonic and supersonic rounds without having to buy new magazines.
Really good shot group consistency out of the box. Took two deer this season with the 156gr supersonic round. One through the lungs at 90yrds and one through the shoulders/spine at 25yrds. Wasn't too proud on the second because I was winded and pulled the first shot. But the smooth cycle on this upper let me retain sight picture and take it with my second shot. Something I'm not sure I could have pulled off with my old lever action 30-30. Also with the solid contact it did knock the deer down, something that made me fell better about its performance
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Review 3 for CMMG .300 AAC Flat Top 16" AR-15 Upper
Overall Customer Rating: 
5 out of 5
5 out of 5
Country: United States
State: North Dakota
Age: 26-35
Gender: Male
Would you recommend this product to a friend? Yes

Well Made Upper + Great Caliber

Date:December 20, 2013
I bought this to go with my suppressor and just this afternoon bagged my first coyote with it. Love the caliber and the ability to shoot subsonic. Everything is made well and my uppers switch out quickly with the pulling of 2 pins. This gun can hit a 100yd target and also a 200 yd target consistantly. I haven't really put enough rounds through it to know how tight I can get the shot groupings but for what I do it works great! I love the ability to switch calibers quickly depending on what I am hunting, shooting, or have ammo available for. Now if only .300 AAC ammo would be more available!
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Review 4 for CMMG .300 AAC Flat Top 16" AR-15 Upper
Overall Customer Rating: 
4 out of 5
4 out of 5
Country: United States
State: New Jersey
Age: 46-55
Gender: Male
Would you recommend this product to a friend? Yes

rambo77613

Date:June 21, 2014
i got rifel upper but had to cut lug off and peeved no marking on barrel desiganate 300acc blk cartrideg othere than that great quailty nice rail i hope i can put front sight like mogo and thay work i have been hearing that gas block destoets sights from othere you tube poeple i dont know yet not finshed i will give five stars when finshed
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