Description

Quick Overview

SKU: 5165450351
UPC: 5165450351
MFR#: 5165450351

Gas System: Carbine Length
Barrel Profile: M4
Barrel Steel: 4150 Chrome-Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: F Marked Front Sight Base
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA Classic Carbine Handguards, Black
Stock Type: PSA Classic M4 Adjustable Stock, Black
Grip Type: PSA Classic A2 Grip, Black
Bolt Carrier Group Included: Yes
Bolt Steel: 9310
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
Fire Control Group: PSA Mil-Spec Fire Control Group
Overall Length: 24.5"

Barrel: Chrome Moly steel barrel chambered in 5.56 NATO with a 1:7 twist rate, M4 barrel extension, and a carbine-length gas system. The barrel is finished off with a standard handguard, F-Marked gas sight base, and A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized, features a forged upper receiver. These uppers are made for us right here in the USA by a mil-spec manufacturer.

Bolt: Full-auto profile bolt carrier group with 9310 steel bolt. Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 8620 steel M-16 profile carrier is nitrided. 

Lower Build Kit: Includes Classic M4-Style Stock, A2 Pistol grip, Classic Lower Parts Kit and Mil-Spec diameter 6-position buffer tube assembly. Everything you need to finish your stripped lower.

Browse for more Palmetto State Armory Firearm Kits gun parts.

Comments (3)

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I almost ordered another one of these but since I still have two orders that have been “processing” for forever now I won’t bring myself to do it. Come on PSA get it together!!!!

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Never been cheaper to build one. Match it with a $129 lower or $99 if you want to try a polymer one. Less than $400 and you are ready to go.

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Economy of scale is a beautiful thing. You couldn’t buy a reliable AR for less than $700 20 years ago. Now you can build one and even put on a halfway decent red dot for $400

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