10.5" SOB nitride AR 15 pistol kit

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PSA 10.5" Carbine-Length 5.56 NATO 1/7 Nitride 12" Slant M-Lok MOE SOB Pistol Kit - 5165449745


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

SKU: 5165449745
UPC: 5165449745
MFR#: 5165449745

Barrel Length: 10.5"
Barrel Profile: A2
Gas System: Carbine-length
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO 
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: PSA Fluted Flash Can
Receiver Material: Forged 7075 T6 Aluminum
Receiver Type: M4
Handguard Type: PSA 12" Slant End M-Lok Lightweight Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Lower Build Kit: MOE SOB Pistol Kit, Black

Add To:

Barrel:  10.5" Nitride treated 4150V Chrome Moly vanadium steel barrel, chambered in 5.56 NATO with a 1 in 7" twist. Carbine-length gas barrel is finished off with an anodized PSA 12" Slant End M-Lok Lightweight Rail, a low profile gas block and a PSA Fluted Flash Can. 

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.

Flash Can: Palmetto State Armory's new Fluted Flash Can! This is a solid 6061 aluminum device that is designed to direct muzzle gases and the muzzle flash forward. Threaded 1/2-28 for 5.56 NATO. Black mil-spec hard anodizing. THIS DEVICE IS NOT DESIGNED TO REDUCE RECOIL, MUZZLE RISE, OR FLASH SIGNATURE. This device is designed to direct gasses and noise forward away from the shooter and enhance the weapon's appearance.

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. 8620 steel M-16 profile carrier is chrome lined and phosphate coated.

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: 5165449745
SKU 5165449745
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: 5165449745

Questions and Answers

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Browse 6 questions Browse 6 questions and 5 answers
Whats the average accuracy around 200yds with this upper?
Tim F on Dec 1, 2018
BEST ANSWER: If you want an accurate 200yd gun I would not recommend an AR pistol. Having said that, my 10.5 upper will hit man-sized silhouette targets consistently at 200yds with good ammo. That's not to say that the groups are impressive at that distance, but it's "good enough for government work" as they say.
Is there a castle nut with the brace?
Alynn907 on Jan 31, 2019
BEST ANSWER: No. However, given the design a castle nut is unnecessary.
Is the brace adjustable?
Daniel M on Nov 22, 2018
BEST ANSWER: Good question. From the looks of it, I'd say it's not...
is the barrel free floating?
brent o on Dec 31, 2018
What is the ID of the handguard? wanna see if my suppressor will mount with the set up
chadwick R on Dec 29, 2018
Is the barrel nut on this mil-spec will it work with a piston set up?
Keith S on Nov 26, 2018


4.8 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Awesome gun!
Awesome gun! Shoots straight
User submitted image
Added Feb 15, 2019
February 15, 2019
11 months ago
Amazing shooter!
Bought this full pistol kit and a plain stripped lower. So fun to shoot. Muzzle break sends all sound and gas forward. Super light weight. Lighter than my DDM4 V11 SLW and shoots just as well.
Borrowed an EOTech for a few rounds and this thing can't miss from 50-75 yards. Low recoil and fast.
Going to be buying a few more for sure
January 28, 2019
11 months ago
Great quality
This is my third build with Palmetto State Armory and couldn't be more pleased with the products.
Showed up in a few days! Haven't went to shoot it yet but looks good. Keep up the great work!
Showed up in a few days! Haven't went to shoot it yet but looks good. Keep up the great work!
January 21, 2019
11 months ago
Great pistol kit!
Great quality upper and parts kit. Very accurate and about as pleasurable to shoot as a 16” carbine but in a much smaller but aesthetically pleasing package. Highly recommended. I was suprised by its accuracy and works well with a cheap red dot sight.
November 19, 2018
Excellent product, fast shipping (Ordered on Monday, had it on Thursday). The picture is slightly misleading as it shows a single point sling adapter and this was not the case. First issue in many orders so not that big of a deal...
October 5, 2018

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