Your Cart

  • Your cart is empty


Palmetto State Armory

Palmetto State Armory PA-15 5.56 NATO 16-inch Mid-Length 13.5-inch Rail Classic AR-15 Rifle

Product Code : PSA-16-M-13.5R-MLOK


Available In-Store
Available Online
Secure online ordering


Barrel: 16" barrel length Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. The A2 profile barrel is finished with Melonite. Barrel is finished off with an .750" diameter low-profile gas block, PSA 13.5" Lightweight M-Lok Free Float Rail and an A2 flash hider.

Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feedramp cuts,  these upper upper receivers are made for us right here in the USA.

Bolt Carrier Group: For AR15 and M16 rifles and carbines. Bolt is made of shot-peened, Mil-spec Carpenter 158® steel. Gas key is secured with grade 8 fasteners and staked. Bolt carrier is parkerized outside and chrome lined inside. Includes Charging Handle.

Lower: These forged lowers are quality made using 7075-T6 aluminum and are marked "MULTI" for caliber. Finish is hardcoat anodize.. Mil-spec diameter 7075-T6 buffer tube is hardcoat anodized, has 6 adjustment positions, is fitted with a PSA M4 Carbine Stock.  The fire control group is a PSA mil-spec finished, single-stage assembly.


Barrel Length: 16"

Gas System: Mid-length 

Barrel Profile: A2

Barrel Steel: Chrome-Moly Vanadium

Barrel Finish: Melonite

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: Low-profile

Muzzle Device: A2 Flash Hider

Receiver Material: Forged 7075 T6

Receiver Type: M4

Handguard Type: PSA 13.5" M-Lok Lightweight Rail

Bolt Carrier Group Included: Yes

Bolt Steel: Carpenter 158

Bolt Carrier Profile: Full-Auto

Fire Control Group:  Standard Mil-Spec Trigger Group

Grip:  A2-style

Stock:  M4-style

Buffer Tube Length:  Carbine

Buffer Tube Diameter:  Mil-spec

Determined at checkout.