8.5" SOB AR 15 300 blackout pistol kit

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PSA 8.5" Pistol-length 300AAC Blackout 1/8 Nitride 7" Lightweight M-Lok MOE SOB Pistol Kit - 5165449808


Quick Overview

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

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 www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

SKU: 5165449808
UPC: 5165449808
MFR#: 5165449808

Barrel Length: 8.5"
Barrel Profile: Heavy
Gas System: Pistol-length
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 5/8-24
Chamber: 300AAC Blackout
Twist Rate: 1:8
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 7" Lightweight M-Lok
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 17.5"
Build Kit: MOE SOB Pistol Kit, Black

Add To:

Barrel:  8.5" 4150V Chrome Moly vanadium steel barrel chambered in 300AAC Blackout with a 1 in 8" twist. Pistol-length gas barrel is finished off with a PSA 7" LIghtweight M-Lok Rail, a low profile gas block and an A2 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: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt, Shot Peened, High pressure tested, Mag particle inspected, Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 

Pistol Build Kit:  A high quality lower build kit with everything you need to assemble your AR-15 lower into a pistol. Features polished hammer and trigger contact points, and black oxide coated hammer and trigger springs. Also includes SB Tactical SOB Pistol Brace, double-looped pistol latch plate, carbine buffer spring, and standard carbine buffer.

SKU: 5165449808
SKU 5165449808
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: 5165449808

Questions and Answers

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Browse 8 questions Browse 8 questions and 6 answers
Does this have ept trigger? Says ‘polished hammer and trigger contact...’
George W on Nov 17, 2018
BEST ANSWER: It is just a standard mil-spec trigger.
Is there any way to get this kit with a 10.5" barrel?
Anthonyvop on Nov 17, 2018
BEST ANSWER: That would be a different kit...
Can you get this in dessert tan?
Matt N on Nov 26, 2018
BEST ANSWER: They do not make this brace is FDE. So only the grip would be tan. Just pick one up from your local gun shop.
Which lower receiver is compatible with this?
Lloyd C on Jan 5, 2019
BEST ANSWER: Any stripped mil-spec ar-15 lower...
Can you mount magpul mbus back-up sights on this or will there be heat issues in the upper receiver end?
Joe W on Jan 5, 2019
BEST ANSWER: You can. MBUIS are very heat resistant.
Is the flash hider removable? Looking to mount a supressor.
Nate C on Jan 11, 2019
BEST ANSWER: Yes, why would it not be?
The brace on mine is too high to cycle the charging handle without hitting the brace, lifting the handle over the lip and dragging it along the top of the brace. Is anyone else having this issue?
Randy M on Mar 9, 2019
Will it ship to California?
Jose M on Jan 14, 2019


4.7 / 5.0
18 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
I would buy another one in a heartbeat.
I will admit I was hesitant at first. With the price of the kit I thought quality may be an issue. But I'll be a monkey's uncle this kit is good quality and shoots dang nice! I've been eyeing up another kit for a second pistol I liked it so much.
March 6, 2019
5 months ago
good kit poor cq
kit is good, shoots fine (for the money), but was missing selector and detent.
I had to rob another parts kit. Would be 5 stars otherwise.
February 16, 2019
7 months ago
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
February 27, 2019
Casey S
Well made, don’t see issues new caliber for me. Shoots very nice and extremely quiet not being suppressed with the sub sonic ammo
User submitted image
Added Feb 7, 2019
February 7, 2019
5 months ago
Great set up & price. Can’t wait to get optics on it & really see it run.
User submitted image
Added Feb 4, 2019
February 4, 2019
5 months ago
Awesome pistol!
Arrived with all parts and great fit and finish. All parts went together in my stripped lower with no issues. So far, I have only fired about 10 rounds out of the gun just for a function check, but had no issues. I have already recommended your products to my friends and they are now considering them.
February 2, 2019
6 months ago
Great little shooting firearm for the price, can't wait to find some hogs.
It shoots great, I would like a folding arm brace but that's a different story, I wanted to give it a 4 star but for the price I changed it to a 5. The reason for the 4 star the charging handle scraps and has cut a groove on the top, besides that awesome little gun. Very easy to put together. Great YouTube videos on how to put it together, don't be worried, this was my first build and will do it again but in 5.56. Total build cost less than $400 with two mags and a red dot. Can't complain about that, cheaper than a glock and has a tighter group. Also it's sounds about the same as a 16" barrel, some people complained about how loud they are on YouTube, my 22 revolver is louder. This has a nice deep sound to it like a Mustang and it will fit in the trunk of any sports car or behind your truck seat in a single cab. If you're worried about the wife this is an inexpensive way to go, show her the competition price and the price of this one. $1200 - $800 vs $400, the price is right to build you're own. Good luck, be safe and have fun shooting.
Size comp to a glock 23, I did go with a different lower only because Palmetto was out at time.
Size comp to a glock 23, I did go with a different lower only because Palmetto was out at time.
January 26, 2019
7 months ago
Haven't had a chance to test fire it yet, but the hole for the gas tube, in gas block, was drilled at an angle, and when I charged the weapon, the bolt carrier key struck and destroyed the gas tube. Rather than complain and return the upper receiver I took it to a local gunsmith and he intalled a new gas tube and adjusted the angle so that it would cycle without getting destroyed again. suggest maybe try to keep a little closer eye on quality control, but know this kind of thing can happen anywhere. All other PSA firearms I have purchased function well.
January 24, 2019
7 months ago
Response from Palmetto State Armory
We do apologize for that. Please contact Customer Service so we may resolve this issue.
January 30, 2019
Casey S
Great affordable fun.
I really like that it came with a MPI M16 style bolt carrier and everything but the lower to complete the build. I only have about 150 rounds through it but so far so good.
User submitted image
Added Jan 24, 2019
January 24, 2019
7 months ago
Badazz little gun. Lightweight and fun to shoot.
January 24, 2019
7 months ago
Love everything about it except the installation and alignment of the SOB brace, leaves a lot to be desired. I've got a couple hundred rounds through her without a single hiccup. Really drills in 'em in there
Early pic before before a couple of changes
Early pic before before a couple of changes
January 23, 2019
7 months ago

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