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PSA 10.5" Pistol Length 300AAC Blackout 1:8 Nitride 9" Lightweight M-Lok Freedom Upper With BCG & CH


Quick Overview

It is the customer's responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16". Federal NFA regulations are applicable to this item.

WARNING: This product can expose you to the chemical lead, which is known to the State of California to cause cancer and reproductive harm. For more information go to (CA Health and Safety Code Section 25249.6).

SKU: 516446429
UPC: 516446429
MFR#: 516446429

Barrel Length: 10.5"
Barrel Profile: A2
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 5/8-24
Chamber: 300 AAC Blackout
Twist Rate: 1:8
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: A3
Handguard Type: Lightweight M-Lok 9" Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 19.5"

Add To:

Barrel:  10.5" Chrome Moly vanadium steel, nitride treated for durability and chambered in 300AAC Blackout with a 1 in 8" twist rate. pistol-length gas barrel is finished off with a PSA 9" Lightweight M-Lok Rail, a low profile gas block and an A2 Style Flash hider. 

Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer. 

Bolt: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside, and chrome lined inside.

SKU: 516446429
SKU 516446429
Department Uppers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price N/A
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 516446429

Questions and Answers

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Browse 6 questions Browse 6 questions and 32 answers
will this upper fit on a AR lower??
Nick L on Nov 1, 2018
BEST ANSWER: I put mine on an Anderson AR lower and it fit perfectly. It is an excellent upper. At the range it performed flawlessly. Highly recommended.
Is the muzzle device staked and/or welded on?
Fted J on Jun 26, 2019
BEST ANSWER: Absolutely not. If it was it would make the muzzle brake part of the barrel 11.5inches instead of 10.5. As such the overall length would exceed 26”. NO IT IS NOT WELDED OR STAKED ON.
Is the flash hider pinned and welded on this barrel or could it be unthreaded to add a brake?
David W on Jun 28, 2019
BEST ANSWER: Not pinned and welded. I run this upper with a silencerco quick detach mount and suppressor
Does this have an H-Bar barrel?
Brian R on May 21, 2018
Is the barrel threaded? If so what's the thread pitch?
Jdog 9 on Jun 14, 2019
Any problem putting this on a Sig 516 Patrol lower? Sometimes Sig can be proprietary.
Patrick on Apr 10, 2019
BEST ANSWER: I never tried to build with Sig parts, but would think same thing. May not fit well. Sig products are funny like that.


4.9 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Love this company
Love the look of this skeleton type upper, well built with a good solid feel, popped it right on my previously built lower, definitely a beast
User submitted image
User submitted image
August 2, 2019
1 month ago
Accurate and great value
Your has worked flawlessly paired with my PSA pistol lower. Had the entire pistol cerakoted FDE and put an adjustable gas block in for the suppressor. The 10.5" barrel is accurate for me out to 100 yards with my vortex strikefire and subsonics. Have yet to go much farther than that but am so far impressed. Great value for the price
User submitted image
User submitted image
May 20, 2019
10.5 .300 blackout upper quality build.
Great item. Quality build. Exactly as advertised. PSA is a great company to buy from.
December 15, 2018
9 months ago
Subsonics work flawlessly
The upper arrived in perfect shape. And more beautiful than I could imagine. It shoots the subsonic ammo perfectly.
300 BLK pistol with AAC Cyclone, Vortex strike fire II.
300 BLK pistol with AAC Cyclone, Vortex strike fire II.
December 9, 2018
9 months ago
Great Upper
Great upper. Especially for the price. This upper is now attached to a PSA lower with a standard PSA parts kit and an SBA SOB brace. This pistol has quickly become one of my favorite ARs. I would recommend and will probably end up purchasing this same upper in 5.56.
I have since added a red dot and buis.
I have since added a red dot and buis.
November 9, 2018
9 months ago
Great value!!
Great upper no issues so far and still running good
November 1, 2018
1 year ago
Love it
so far! Hard to believe I took so long to order the thing. Can’t wait to run it suppressed for thinning our hog populous here.
The ability to switch out uppers with the 556 platforms as well as utilize the 556 brass making rounds is a big plus.
The last star is waiting more time pulling the trigger...
Definitely, recommend this upper to anyone getting started with the 300 blackout platform. Thanks again PSA!
September 21, 2018
12 months ago
Top quality for a great price
I haven’t had time to take to range yet but it is the same top quality product I have grown to expect from PSA,I can’t wait to hunt with it this upcoming season for deer
My 10.5 inch pistol with centerpoint 3x9x40 first focal plane scope
My 10.5 inch pistol with centerpoint 3x9x40 first focal plane scope
September 16, 2018
1 year ago
Love this thing!
I wish I would have known about AR pistols before purchasing other lengths! This 10.5 is light and maneuverable. I will be using it for a woods gun and when I am in a tree stand. Great product!
I love this new 300 blackout upper.  Perfect woods gun!  Easy to maneuver.  My new treestand gun
I love this new 300 blackout upper. Perfect woods gun! Easy to maneuver. My new treestand gun
June 18, 2018
1 year ago
Works out of the box
This is a pretty nice setup if you want a 300Nlk upper for your AR pistol or if you plan a SBR build. I put this on my AR Pistol receiver (Also ordered from Palmetto). Tried 15 supressed shots right out of the box after adding some SLIP2000 to bolt. Bot a single problem, 100% function and a really nice setup.
May 13, 2018
1 year ago

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