Out of stock
PSA 20" Rifle-Length 6.5 Grendel 1/8 Stainless Steel 15" Lightweight M-Lok MOE 2-Stage Precision Rifle Kit
Out of stock

PSA 20" Rifle-Length 6.5 Grendel 1/8 Stainless Steel 15" Lightweight M-Lok MOE 2-Stage Precision Rifle Kit

SKU 51655106502
Brand Palmetto State Armory
Model Number 51655106502
UPC 51655106502
Customers must read Compliance Information before purchasing.

Product Details


Barrel Length: 20"

Gas System: Rifle-length

Barrel Profile: A2 Style

Barrel Steel: 416R

Barrel Finish: Stainless Steel

Chrome Lining: None

Muzzle Thread: 5/8-24

Chamber: 6.5 Grendel; Type 2

Twist Rate: 1:8

Barrel Extension: M4

Diameter at Gas Block: .750

Gas Block Type: Low profile adjustable gas block

Muzzle Device: A2 Flash Hider

Receiver Material: Forged 7075 T6

Receiver Type: M4

Handguard Type: PSA 15" Lightweight M-Lok Free Float Rail

Bolt Carrier Group Included: Yes

Bolt Steel: 9310, Nitride Coated

Bolt Carrier Profile: Full-auto

Charging Handle Included: Yes

Build Kit: PSA MOE 2-Stage Lower Build Kit, Black

Overall Length: 26.5"

Weight as Configured: 4.2lbs



Barrel: 416R Stainless steel. Chambered in 6.5 Grendel, with a 1:8 twist, M4 barrel extension, and a rifle-length gas system. The barrel is finished off with a PSA 15" Lightweight M-Lok free float rail, .750 adjustable gas block, and A2 flash hider.

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

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

Build Kit: PSA MOE 2-Stage Lower Build Kit


Q & A

Retail Stock


All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.