PSA Gen4  8" 9mm 1:10 7" Lightweight M-Lok MOE SBA3 Pistol - 5165450029

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PSA Gen4 8" 9mm 1:10 7" Lightweight M-Lok MOE SBA3 Pistol - 5165450029


Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

Must be 21 or older to purchase.

If you live in California, please read this notice before ordering.

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: 5165450029
UPC: 5165450029
MFR#: 5165450029

Barrel Length: 8"
Gas System: Blowback
Barrel Profile: Heavy
Barrel Steel: 4150V Chrome Moly Steel
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 1/2-36
Chamber: 9mm (9x19)
Twist Rate: 1 in 10"
Barrel Extension: Blowback
Diameter at Gas Block: N/A
Gas Block Type: N/A
Muzzle Device: Birdcage Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: Slick Side
Handguard Type: PSA 7" Lightweight M-Lok
Bolt Carrier Group Included: Yes
Bolt Steel: 8620
Bolt Carrier Profile: 9mm Gen4
Charging Handle Included: Yes
Lower Receiver: Forged 7075 T6 Aluminum
Receiver Finish: Hardcoat Anodized
Fire Control Group: Single-Stage, Mil-Spec
Grip: Magpul, Black
Buffer Tube: 7075 T6 Aluminum 
Adjustment: Fixed
Pistol Brace: Adjustable SBA3 Brace, Black
Magazine: ETS Clear Magazine, 31 Round

Add To:

Barrel: 8" chrome moly steel barrel. Chambered in 9mm, (9x19), with a 1/10 twist. The barrel is nitride treated for durability and finished off with a Palmetto State Armory 7" Lightweight M-Lok free-float rail and a bird cage style A2 flash hider. 

Upper: Billet 6061-T6 Slick side AR upper is hard coat anodized black for durability.  These upper receivers are made for us right here in the USA.

Bolt Carrier GroupGen 4 Hybrid 9mm BCG.  Nitride treated 8620 steel bolt, with an enhanced firing pin and external 5.56 style extractor. The bolt carrier group is compatible with most aftermarket fire control groups. 

Lower:. Forged 7075 T6 aluminum and then hard coat anodized, these lowers are purpose built to accept 9mm Glock®-style magazines.   Designed to work with PSA's new 9mm Hybrid uppers.  The lower is assembled with a Palmetto State Armory MOE SBA3 lower build kit with a Magpul Grip,  PSA 6 position buffer tube, and SBA3 Adjustable Brace.  Does not include last round bolt hold open feature.

SKU: 5165450029
SKU 5165450029
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? Yes
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165450029

Questions and Answers

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Browse 42 questions Browse 42 questions and 25 answers
Last round bolt hold..... last round bolt hold...would purchase right now if this very set up had it. PSA, possible this is coming?
Elfster R&R on Jan 17, 2019
Will the law tactical or SB tactical folding brace adapters work with the PSA GX9 gen4 ?
john m on Jan 19, 2019
BEST ANSWER: You must remove the weight from the BCG and replace it with the folding brace insert.I just installed the Law Tactical Gen 3 on my PSA Gen4 8" 9mm 1:10 7" Lightweight M-Lok MOE SBA3 Pistol and took it to the range for 200 rounds of 124g FMJ and it works great.
Will this shoot 147gr without problems or only 115gr 9mm?
Donald H on Jan 17, 2019
BEST ANSWER: Mine shoots everything from 95 gr to 147 gr without any difficulty.
Can I get the muzzle thread in 1/2-28?
Joe O on Nov 17, 2018
BEST ANSWER: No, thread is 1/2 x 36
Approx. How long until it is back in stock?
Brady L on Mar 2, 2019
Can anyone recommend an appendix holster for this pistol?
Donnie on Apr 7, 2019
Does anybody know if the Fostech binary trigger would fit? I have seen some 9mm receivers that they would not go into.
dsoll on Jan 18, 2019
BEST ANSWER: The Franklin gen 3 does!! Does it ever!!!
boom boom boom
What is the overall length? It may be helpful to have this spec on all listings.
Randy on Jan 24, 2019
BEST ANSWER: With brace retracted 24". Brace extended 26.5"
Does it work with a Glock mag?
Xiaowei Z on Jan 25, 2019
BEST ANSWER: Read the description, yes it works with Glock mags...
Could I drop a bolt catch in this myself?
Wes F on Apr 10, 2019
BEST ANSWER: Yes, it’s held in place by a simple roll pin. Just have to push it out and replace. Very simple and easy.
Is the mag release steel or polymer?
Corey T on Mar 31, 2019
BEST ANSWER: It is steel on mine.
What kind of suppressor would be best on this build? Ie:: is this threaded good?? Size??
Mark P on Apr 10, 2019
Is the upper forged 7075 T6 or billet 6061 T6?
ChillyWilly on Jan 18, 2019
BEST ANSWER: Lower is forged 7075 T6, upper is billet 6061-T6, read the description.
Can anyone recommend a specific BOLT CATCH for this pistol ??
John J on May 29, 2019
Will it take a KAK 9mm flash can?
Joe87 on Mar 17, 2019
BEST ANSWER: Yes it will and it looks great with it equipped. I have the KAK micro on it right now
What is the thread on the bird cage?
Zach H on May 17, 2019
BEST ANSWER: It’s 1/2x36. Slr industries makes ones of the best breaks in 1/2x36.
Can a suppressor be installed on this gun?
Jake M on Apr 5, 2019
BEST ANSWER: Yes, but you'll need a thread adapter to use a standard 1/2x28 9mm suppressor.
Does the lower take standard AR triggers? Rock river national match & such?
Phillip E on Feb 5, 2019
BEST ANSWER: Typically regular AR drop in triggers will not work reliably. Regardless of the brand drop in trigger make sure it is states that it works with 9mm specifically. Standard mil spec triggers work fine.
Does it come with 9mm buffer, and AR10 308 spring?
Stronger recoil springs are needed in straight blowback AR9's.
B A on May 4, 2019
Is it compatible with a gen 2 echo trigger?
Austin C on Apr 8, 2019
Does it have a mil-spec buffer tube?
Dustin Y on Apr 17, 2019
BEST ANSWER: Yes it does and the pistol is my primary go to while on Patrol.
Will any standard ar 15 / mil spec charging handle work with this pistol?
michael h on Apr 30, 2019
BEST ANSWER: I put a bcm extended latch handle and it works fine.
Is there a foregrip that will fit? doesnt look like it has the railing for it.
fernando l on Jun 12, 2019
Is the Enhanced Firing Pin that comes with the bolt carrier group Tool Steel or Titanium?
Harold M on Jun 2, 2019
Will this model accept Glock model 19 mags?
Mountain Black on May 30, 2019
Is this barrel pinned and welded or since it's technically a pistol, can the muzzle device be replaced?
The Mattman on May 29, 2019
Is there an EPT 8" AR9 with the SBA3 like this? (asking for a friend. LOL.)
Marty on May 27, 2019


4.9 / 5.0
16 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Buy it you will like it shoots great
Took a few months to get this item (temp out of stock). It shipped fast with no problems. The clear magazine that come with it looked cheap and I left it in the box. Ordered 3 Glock 33rd mags.

Bought a cheaper 40.00 red dot adding Magpul flip up sights later. The gun shot great. Priced Rock River Arms weapons and for the money, hard to beat PSA.

Recommend this gun

I would suggest buying 3 or more Glock 33 rd mags when purchasing.
May 19, 2019
Awesome PCC
After doing some research purchased about a month ago. Added my Vortex and upgraded to a CMC drop in Flat blade 9mm trigger and am amazed at how accurate a shooter this PCC is. The adjustable SBA3 is really comfortable to shoot. Reliability has been 100% since I switched to Glock and Magpul mags.
April 29, 2019
Looks like a winner...
I received mine yesterday and was able to get to the range a couple of hours later. Put a Sightmark Ultrashot Plus on it and zeroed at 25 yards. 9 rounds later, I was pinging 4 inch plates at a little over 50 yards. I did have a minor issue where I had some misfeeds, but the more rounds through, the more smoothly it ran. I will take it out again next week and stretch the range out a bit, try different ammunition to see what it really likes, and overall see what it will do. First impression is better than I had hoped.
April 16, 2019
Fun, Accurate Gun
I purchased this gun approx. 3 months ago and I love it. I have a Vortex red dot on it and its a tack driver. I have put approx. 1000 rounds through this gun with basically no issues. The only hiccup I had is that the clear ETS Mags it comes with are garbage and wouldn't feed correctly. I started using glock mags and I haven't had a issue since. I absolutely recommend this gun to anyone looking for a cheap AR-9 that shoots great.
April 10, 2019
Great quality and a ton of fun!
Excellent quality firearm from PSA! Such a fun little gun to shoot. I would recommend changing the trigger out for a PSA EPT trigger though.

Well worth the money!
March 13, 2019
Great Gun
Great quality gun. Smooth running little gun. Great addition to any collection.
User submitted image
Added Feb 24, 2019
February 24, 2019
4 months ago
Decent gun for the price, trigger was horrible and replaced immediately bit other then that works fine.
February 24, 2019
4 months ago
Love the gun so far
Got my order in and the gun came in as advertised. Have not had a chance to shoot the gun as of yet due to the weather. When I do I will submit a further review.

George Lawson
February 18, 2019
5 months ago
PSA 8” 9MM
Very good rifle and handles awesome. Very flat shooter and accurate. You can’t go wrong with this weapon and I even carry it in my patrol car.
February 17, 2019
5 months ago
I will not build or buy from anyone else thank you PALMETTO STATE ARMORY
5th rifle I've bought or put together from you guys about 5000rds through the original as for this one plinking steel 100yrds with mbus irons thx again for a great deal on those as well IG yambo352 for the proof love your mission statement on YouTube
556 shorty
Stamped lower
10x at 100yrds the groups dont do the rifle justice 
16inch 556
9mm with Romeo 5 red dot another great pick up and mbus backup irons
9mm mbus irons plinking steel at 100yrds
February 17, 2019
5 months ago

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