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10.5" Upper Receiver with MLOK Rail .300 Blackout
PMA 300 upper

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Our Price: $259.99

Product Code: 10512FSGIIMLCAN300

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Featuring a Chrome-Moly barrel with a phosphate finish, this AR upper receiver with a MLOK rail is completely assembled and ready to pin onto your existing lower receiver. The receiver is chambered for .300 Blackout. At Pickett's Mill Armory, we take pride in selling upper receivers that are crafted from the finest materials. Each of these short-barrel rifle receivers is test-fired before shipping to ensure quality and safety.

Our .300 Blackout upper receiver features an M4 feed ramp flat-top receiver with feed ramps on both the barrel extension and the upper. The 12 inch tactical free-float M-LOK rail is designed to allow you to mount items and attachments while staying off the barrel so as not to affect harmonics thus enhancing accuracy. It has a black anodized finish that meets military specifications. Please note that this 10.5 inch upper receiver does not include a nitrided auto bolt carrier and charging handle but they can be added. Order this upper receiver today for precision, quality and safety you can count on.


- M4 Feed Ramp Flat Top Receiver.
-Black anodized mil-spec finished upper receiver.
-Feed ramps on the barrel extension and upper.
-4150 Chrome Moly Barrel.
-Phosphate barrel finish
-Chambered in .300 Blackout
-10.5" M4 Profile barrel with M4 Extension
-1/8 Barrel Twist
-.750" diameter at gas block
-5/8-24 threaded muzzle/barrel
-Low profile Steel gas block with carpenter 158 screws
-Pistol length gas system
-Flash Can Muzzle Device
-12" Tactical Free Float M-LOK Rail

Average Rating: 5 of 5 Total Reviews: 9 Write a review »

  0 of 0 people found the following review helpful:
January 15, 2019
Reviewer: james Dekker from Olive branch, MS United States  
Shipping was quick and packaging was good overall very happy with this upper will be going with you guys in the future

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  1 of 1 people found the following review helpful:
Outstanding product and fast shipping February 28, 2018
Reviewer: James Hebert from Laingsburg , MI United States  
This upper performs like others that cost 3 to 4 times as much I will be doing more business with them

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  1 of 1 people found the following review helpful:
10 1/2 300 b/o upper February 16, 2018
Reviewer: morris jones from piedmont, SC United States  
Awsome fit and performance. Fantastic customer service

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  1 of 1 people found the following review helpful:
Recent purchase February 11, 2018
Reviewer: Frank Dejuan from Riverview, FL United States  
I am very satisfied with my purchase and service. Delivery was as promised and the quality top notch. I plan on many more purchases in the future.

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  1 of 1 people found the following review helpful:
300 blackout upper March 7, 2017
Reviewer: Jason CHambers from Unicoi , TN United States  
Amazing fit and finished solid as a rock every upper I get will come from this group fast shipping and friendly support staff a pleasure to deal with look forward to doing business with them again soon

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