PSA 8.5" .22 LR 1:16 Nitride 7" Lightweight M-Lok Upper - With BCG & CH -5165449748

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PSA 8.5" .22 LR 1:16 Nitride 7" Lightweight M-Lok Upper - With BCG & CH -5165449748


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: 5165449748
UPC: 5165449748
MFR#: 516446934
  • Barrel Length: 8.5"
  • Gas System: Blowback
  • Barrel Profile: Heavy
  • Barrel Steel: 4150 Chrome-Moly Vanadium
  • Barrel Finish: Nitride
  • Chrome Lining: None
  • Muzzle Thread: 1/2-28
  • Chamber: .22 LR
  • Twist Rate: 1:16
  • Barrel Extension: Blowback .22 LR
  • Diameter at Gas Block: .750
  • Gas Block Type: N/A
  • Muzzle Device: A2 Flash Hider
  • Receiver Material: Forged 7075 T6
  • Receiver Type: M4
  • Hand guard Type: PSA 7" M-Lok Lightweight Rail
  • Bolt Carrier Group Included: Yes
  • Bolt Carrier Profile: Dedicated .22 LR Phosphate
  • Charging Handle included: Yes

Add To:

Palmetto State Armory is proud to announce the Dedicated .22 LR Upper! 

Barrel:  4150V Chrome moly vanadium steel 8.5" barrel length chambered in .22 LR, with a 1:16 twist. The heavy profile barrel has a gas nitride finish for accuracy and durabiltly, and is finished off with a PSA 7" M-Lok Lightweight Free Float Rail, and an A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feedramp cuts, these upper upper receivers are made for us right here in the USA

BCG: Dedicated Phosphate .22 LR Bolt Group

Magazine: Uses standard Black Dog Machine AR15 - .22LR Magazines.  Magazine NOT Included

SKU: 5165449748
SKU 5165449748
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: 5165449748

Questions and Answers

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Browse 17 questions Browse 17 questions and 22 answers
Will this function in full auto with a full auto lower?
MARK H on Oct 5, 2018
BEST ANSWER: I just got this in and the answer is a definitive NO - this will not work full auto. With the delivered BCG the "tab" or lip that would contact the auto sear is way too far forward.
How reliable is this upper with subsonic ammo?
Mike G on Oct 5, 2018
BEST ANSWER: My 22 LR CMMG 4.5" upper with CMMG Bolt Group 22ARC upper runs fine with subsonic. The PSA 22 LR Bolt Group is very similar to the CMMG Bolt Group 22ARC. I do frequently clean it and lubricate it. I suppress it with a Surefire Ryder 22-A and all you hear is the cycling action.
Will this work on a standard mil spec 5.56 lower receiver? And what magazines will work with it?
Christopher B on Oct 7, 2018
BEST ANSWER: yes it will work on mil-spec lower, and you can get .22 LR AR15 mags for these.
with any 5.56/ .223 AR, all you need to convert to a .22 LR is the blow back .22 LR B.C.G. ( Bolt Carrier Group ) and AR15 mags designed for .22 LR. your barrels is already a .22 cal. barrel so no swap needed there the .22 LR does'nt have enough gas pressure to cycle bolt, so that's why you need the blow back B.C.G.
What is needed for the lower?
What mags?
Ben D on Oct 7, 2018
BEST ANSWER: Mil-spec lower, Black Dog mags
If I put this on my standard mil-spec AR Lower is it considered a short barrel rifle?
DjTaz1968 on Oct 15, 2018
BEST ANSWER: Yes. This requires either a pistol lower or a registered SBR lower to be used legally.
Who manufactures the .22 LR Bolt Carrier Group sold with this Upper?
Javel on Oct 22, 2018
BEST ANSWER: Most likely Palmetto State Armory. Search on YouTube Palmetto State Armory Our History and you'll see they own a bunch of companies that produce most if not all of their parts.
Can I get this in flat dark earth?
Big man on Oct 6, 2018
Do you have to have a permit to own an SBR upper and pistol lower?
Shawn B on Mar 6, 2019
Can I put a suppressor threaded 1/2-28 on this?
GREGORY L on Oct 7, 2018
Will this upper fit
a gsg522 lower?
DANIEL M on Oct 7, 2018
BEST ANSWER: if the GSG522 uses a mil spec AR 15 lower, then it will.
But I don't think it does ?
Will this work with black dog AR15.22 Sonic Weld Magazine?
Milestone on Nov 19, 2018
BEST ANSWER: Yes. Use standard Black Dog Machine AR15 - .22LR Magazines. You may confirm this on the black dog website.
Will this upper work with cmmg .22 bcg conversion and mags?
William C on Oct 16, 2018
BEST ANSWER: No, because the cmmg AR-15 conversion bcg has a shell adapter on the front that feeds the 22 round into the chamber. This BCG directly feeds the rounds into the chamber.
What kind of lower can I use with this? I'm new to the AR game.
Tim P on Oct 14, 2018
BEST ANSWER: Any mil spec ar lower will work
Is this system completely blowback or does it have a gas tube with a gas block?
Banski on Oct 14, 2018
BEST ANSWER: Blowback. The cycling happens within the BCG. No gas tube or block.
does this require a buffer and spring or can you put a folding stock on it?
John B on Oct 11, 2018
BEST ANSWER: No buffer and spring necessary. The bolt does not move. The cycling action happens within the 22 Bolt.
Will a sw 15-22 magazine and lower work with this upper?
Neal O on Oct 8, 2018
BEST ANSWER: You can purchase a converter for a mil-spec AR-15 Lower that will allow you to use M&P mags, or you can just use 22 LR Black Dog mags.
Are spare parts or a spare parts kit available?
Steven K on Oct 18, 2018


3.6 / 5.0
16 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Fun little gun
First caveat: don't use a lower powered hammer spring. Otherwise, this is a dandy little fun gun. Much handier if you use the less common 10 round magazines.
January 29, 2019
1 year ago
Gave it a chance, but sadly dissatisfied..
I wanted this to work so badly, I truly gave it a fair chance but it's an absolute fail. The only thing it's fun for is to do a mag dump with the 25 round Mad Dog mags or to simply practice on your trigger pull I suppose? Horribly inaccurate and ruins the experience with shooting .22lr. Looks cool, functions great without any issues, but the accuracy is extremely inconsistent, even at 15 yards. Please work on your barrel and fix the kinks so I can purchase an improved version. Will keep an eye out but unfortunately will not be the guinea pig this time and will wait for reviews.
January 2, 2019
1 year ago
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
January 2, 2019
Casey S
Great Plinker
Great little upper, it ran reliably with jacketed rounds both hollow and fmj. Will not cycle lead nose especially waxed ones. Not sure about the accuracy claims I haven't tested to confirm the other reviews.
December 13, 2018
1 year ago
Heavily Disappointed
Currently this upper is back at PSA being worked on because about every other shot it FTE and stovepipes... I tried it on 4 lowers before contacting PSA about the issue so I'm confident that's not the problem. Once I get it back from PSA I will update my rating. But as of now I'm very disappointed.
December 10, 2018
1 year ago
Wait and See
Well the reason I title this wait and see and only gave it 3 stars is because mine upper has been sent back to the shop for repair. The fit and finish are great. The operation of the upper is great. I shot 100 rounds of various .22 rounds and it ate everything. The problem is it was shooting a shotgun pattern . I just put on a brand new holosun red dot I purchased from PSA. To confirm it was not the red dot I put it on my Ruger PPC and it zeroed in 9 rounds. So my upper is back at PSA waiting for repairs. Customer service was great. I can't wait to get it back. I will update when I recieve the repaired upper.
December 10, 2018
1 year ago
PSA 8.5" .22 LR 1:16 Nitride 7" Lightweight M-Lok Upper - With BCG & CH
I would highly recommend. I set mine up with the PA-15 Lower with a Binary trigger from Frankilin Armory. So much fun for myself and family to shoot.
December 8, 2018
1 year ago
Jus buy this lil fella
Great lil upper, reliable compact and well put together. Ideal for a lower with the sba3 brace. Feed with some steel lip black dog mags an you'll be all set.
December 7, 2018
1 year ago
great little pistol upper
December 6, 2018
1 year ago
Its a jamomatic shells don't eject properly and a lot of light primer strikes. Not very reliable
Its a jamomatic. Shells don't eject properly and lots of light primer strikes
December 6, 2018
1 year ago
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
December 6, 2018
Casey S
Great little gun for the money, added psa pistol lower, cheap flip up sights, Shockwave blade,sig romeo 5 red dot and black dog machine 50 round magazine.
Great little gun!!
Great little gun!!
November 13, 2018
1 year ago

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