PSA 20" Rifle-Length .224 Valkyrie 1/7 Stainless Steel 15" M-Lok Upper with BCG & CH - 5165447845

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PSA 20" Rifle-Length .224 Valkyrie 1/7 Stainless Steel 15" M-Lok Upper with BCG & CH - 5165447845


Quick Overview

SKU: 5165447845
UPC: 5165447845
MFR#: 5165447845

Barrel Length: 20"
Gas System: Rifle-length
Barrel Profile: A2 Style
Barrel Steel: 416R
Barrel Finish: Stainless Steel
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: 224 Valkyrie
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low profile adjustable gas block
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 15" M-Lok Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: 9310, Nitride Coated
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 26.5"
Weight as Configured: 4.5lbs

The 224 Valkyrie upper is designed to function with any Mil-Spec AR-15 Lower Receiver and is to be used with a standard 6.8 SPC Magazine.

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The ultimate long range AR-15 upper is finally here!

The 224 Valkyrie round was developed to bring unheard of accuracy and long range ballistic performance to the AR-15 platform. 

Barrel: The PSA 224 Valkyrie upper receiver was created with a 416R Stainless Steel barrel with a 1:7 twist rate for optimal accuracy over long distances.  Cycling reliability is achieved with a rifle length gas system, which is completed with a PSA Low-profile adjustable Gas Block.  The barrel is finished off with an A2 flash hider and a PSA 15" M-Lok Rail.  

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

SKU: 5165447845
SKU 5165447845
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? No
SKU: 5165447845

Questions and Answers

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Browse 4 questions Browse 4 questions and 39 answers
On the gas block there are 2 screws one on the front and one on the right side! Which one do you use to adjust the gas?
D-Lay on May 11, 2018
BEST ANSWER: You use the front screw
Is a 224 Valkyrie lower the same as a regular 5.56 or .223 lower?
Michael F on Jun 4, 2018
BEST ANSWER: Yes, they both use the AR-15 lower. However the 224 Valkyrie cartridge will not work with a 5.56/223 magazine. You have to use a 6.8 spc magazine. Diameter of 224 Valkyrie is larger than the 5.56/223.
Will this upper attach to my 223 AR -15 colt with no "fit" issues ?
Hitman on May 2, 2018
BEST ANSWER: This upper fit 4 different lowers I had. They were all nil spec lowers from PSA, Spikes, BCM and smith and Wesson. It should fit your colt lower as long as it is a standard AR-15 mil spec lower
Are there any QD sling holes on the rail?
Johnny S on Jun 19, 2018
BEST ANSWER: there are no sling holes per say. it is the m-lok system and many manufacturers make adapters for the system to mount just about anything that you wish to install. shop around and you will find what you are looking for. I installed an adapter to mount my bipod which then also gave me a mount for a sling if i wanted to mount one. Glen / Wisconsin


4.5 / 5.0
19 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Chronographed at 2600 fps, which is great. But not very accurate yet. About 2.5" at 100 yards. Only about 40 rounds through it so far, hoping that after a couple hundred rounds it will break in and be more accurate.
June 10, 2018
1 month ago
Very inaccurate while bench resting very disappointed.
Fit and finish are great but accuracy was terrible. I put this on a psa lower and I couldn’t be more disappointed. With American eagle factory ammo 75 grn fmj I couldn’t even get my groups to touch at 25 yards even when I was resting it with a brand new leupold 6 by 18 by 40 mk ar scope. When I stepped out to 100 yards I had over a 20 inch rise from where I was shooting at 25 yards and was unable to hold a consistent group. Very disappointed in the accuracy of this upper. I guess I’ll try a 90 grain bullet next time but so far the 224 isn’t living up to all the hype.
June 3, 2018
1 month ago
Response from Palmetto State Armory
We do apologize for that. Since all of our parts and firearms are covered by our Unlimited Lifetime Warranty, we can have that upper brought in and the barrel inspected. If the repair team can verify that the barrel is bad, we can replace that at no cost to you. Please contact Customer Service so we may resolve this issue.
June 6, 2018
Casey S
20' psa .224 valkyrie sku 516544785
Had to get something in the NEW caliber...... I made the right choice. What a piece of machinery! Functions perfectly, no problems with anything and amazingly accurate. I would buy it again and again........

Glen / Wi.
May 21, 2018
3 months ago
Well made
I assembled this upper on a PSA .224 Valkyrie marked lower, with PSA lower parts. I mounted a Leupold Mk4 scope using Leupold 30mm QD rings. Everything looks really great. The only downside is the first 10 rounds of Fed Matchking 90gr ammo grouped into just over 4" at 100 yds, from the bench. My two other AR platform rifles group consistently at .5 to .75 MOA . I plan to clean, check everything and try again. Hoping for improvement.......
May 18, 2018
2 months ago
pretty accurate
I shot different bullet weights of the federal and both had groups of about one inch. I also shot some of my reloads and it did even better. I really wanted a 24" barrel but settled for the 20". It'l do the job just fine. I would recommend this upper because it works just great. No issues with it, period
May 17, 2018
2 months ago
The picture says it all.
User submitted image
Added May 12, 2018
May 12, 2018
1 month ago
Nice shooter, love the heavier bullet
Here it is on a Colt lower. It is a very good fit. Also fit a DDLES, an M1 Machine 80% and of course PSA. Any 'Mil-spec' should do.
Test fit on Colt
Test fit on Colt
May 7, 2018
Very glad I decided to go with this particular PSA upper. No problems whatsoever!
I was apprehensive at first about buying an upper in a brand new caliber that had not been out in the real world for too terribly long. I figured since it at least came with an adjustable gas block I would be able to fine tune it if need be. After installing an optic and attaching my new upper to an existing lower that I owned, I took it to the range. I was amazed at it's performance. It needed no adjustment of any kind. I was shooting the 75 grain TMJ rounds exclusively through it and it never had any problems whatsoever! I would definitely recommend this 20” upper to anyone who was thinking about building a .224 Valkyrie.
May 6, 2018
2 months ago
Great upper for a great price
Very nice fit and finish. Sub MOA groups @ 100 yards with the first box of ammo tried. This will be my new go to varmint rifle.
May 5, 2018
3 months ago
Sub MOA out of the Box
I have been very impressed with this upper. To be honest I didn't expect it to perform as well as it did being a $500 complete setup. However with some 90 grain Sierra Match Kings it shot sub-MOA and I was taking out clay pigeons at 280 yards at will. Great upper! I would buy it again and again. So happy I made this happen. Couldn't be happier.
May 4, 2018
3 months ago

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