PSA 10.5" Carbine-Length 5.56 NATO 1/7 Nitride 12" Slant M-Lok MOE EPT SBA4 Pistol Kit

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PSA 10.5" Carbine-Length 5.56 NATO 1/7 Nitride 12" Slant M-Lok MOE EPT SBA4 Pistol Kit

In stock

Special Price $ 449.99

Regular Price: $ 729.99

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: 5165458181
UPC: 5165458181
MFR#: 5165458181

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: 1/2x28
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 Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Overall Length: 21"
Build Kit: MOE SBA4 EPT Pistol Kit, Black

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Barrel: 10.5" 4150V Chrome Moly vanadium steel, nitride treated for accuracy and durability, and chambered in 5.56 NATO with a 1 in 7" twist. Carbine-length gas barrel is finished off with a PSA 12" Slant End M-Lok 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. Featuring a mil-spec finish, these uppers are made for us right here in the USA by a mil-spec manufacturer.

Flash Can: Palmetto State Armory's Fluted "FLASH CAN". This is a solid 6061 aluminum device that is designed to direct muzzle gases and the muzzle flash forward. Threaded 1/2x28 for 5.56 NATO. Black military-style 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: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. 

Build Kit: A high quality lower build kit with everything you need to assemble your AR-15 lower into a pistol. Features Enhanced Polished Trigger (EPT), Magpul Grip, Magpul Trigger Guard, and black oxide coated hammer and trigger springs. Also includes SB Tactical SBA4 Adjustable Pistol Brace, castle nut, latch plate, carbine buffer spring, 5 positioning mil-spec buffer tube, and standard carbine buffer.

SKU: 5165458181
SKU 5165458181
Department Uppers
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Unit Price No
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 5165458181

Questions and Answers

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Browse 3 questions Browse 3 questions and 9 answers
Is the flash can permanently attached?
Joshua B on Aug 2, 2019
BEST ANSWER: No. You will need a can or similar device in order to clear the muzzle past the handguard. Or of course, change the muzzle device AND a shorter handguard together.
I’m looking to buy the PSA 1728 lower, Will this lower work with this pistol kit?.
New to learn on Jun 9, 2019
BEST ANSWER: Yes. That is the lower I ordered. I called PSA and they said that it works and the finish is very similar. My kit arrives tomorrow and I only ordered today. My first build, so looking forward to it.
I have a lower that was purchased in 08 and never assembled. Can I use it with this pistol upper kit and be legal?
Dan H on May 9, 2019
BEST ANSWER: Depends on how you had it registered when it was purchased. If it was registered as a rifle, it has to be made into a rifle or pay the tax stamp for SBR.


5.0 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
Great Product Great Price
I love this pistol. I added an Aero Precision Lower and put this together with a few other little modifications! It is amazing. I have put about 800 rounds through it and it has shot beautifully with every mag and all types of ammo. As it is a 1/7 barrel it tends to like a heavier round if your reaching out past about 150. But I have been putting groups just outside a quarter at 36 yds using my red dot and grouping about 3-4 inches at just over 100. As I have several other Ar 15s with 14.5 and 18in barrels that can reach out to 800 + easily with proper glass, this tool is not meant for that. CQB practice at the range, it has thus far been amazing! Thanks Palmetto for a great product at a great price. I will continue to speak highly about you guys!
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August 6, 2019
3 months ago
Excellent kit! Would recommend.
Excellent quality, perfect combination of parts, and a quality neither too much to be worth it or less than the cost leave me very happy with this setup so far.
Mounted on a Spike's lower with a set of Strike Industries gold TD pins, this is flawless so far!
I've run guns on three continents in austere conditions more often than under sunny skies, and this feels better than a few of those weapons ever did.
In her natural habitat.
In her natural habitat.
July 12, 2019
3 months ago
Excellent Value and Quality
Kit went together really well. This was my first AR build, though I am very familiar with ARs after serving in the Army. If someone is fairly handy and can deal with the roll pins, I think they would be able to assemble this kit without difficulties. The fit of the PSA stripped "MULTI" lower was excellent. The bolt seems to be nitrade coated as well. Only slight problem I had was I could not reinsert the firing pin retaining cotter pin. PSA customer service is sending out a new one. The pin from my other AR works fine. I have not taken to the range and will update after firing.
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June 21, 2019
3 months ago
10.5" Carbine length pistol kit
This is a great kit! Product was delivered fast and double boxed. Opened kit to do the standard inventory to make sure eveything was included- it was. What I.really appreciated was the lower parts kit items were individually bagged according to group. Trigger assembly, springs and pins in their own bag. Mag release, spring and pin individually bagged. etc, you get the idea! Thank you Palmetto, you did an excellent job!!! Kit went together nice and tight with the lower I used.
June 18, 2019
3 months ago
This firearm kit is a beast of a value! You won't be disappointed!
June 17, 2019
4 months ago
Great set up.
Love this set up. Added a Law Tactical Folder, CMC flat drop in trigger, Mag angled foregrip, and some flip up Magpul sites. 1” grouping at 50 yards with open sites. Just need to build your stripped lower.
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June 9, 2019
4 months ago
Excellent kit which produces a great looking AR
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Added Jun 8, 2019
June 8, 2019
4 months ago

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