AR-308 Upper Only
Original price was: $449.99.$399.99Current price is: $399.99.
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AR-308 Upper Only Information
The AR-308 Upper Only is a large-frame AR upper-receiver assembly described as a Palmetto State Armory component. Its listed configuration includes an 18-inch stainless-steel barrel with a mid-length gas system.
This section provides general product, compatibility, and safety information only. It does not include installation procedures, firearm-assembly instructions, torque specifications, or modification guidance.
Eighteen-Inch Stainless-Steel Barrel
The upper is listed with an 18-inch barrel manufactured from 416R stainless steel. Its A2-style profile and stainless exterior distinguish it from configurations using shorter, phosphate-finished, or nitrided barrels.
The exact chamber marking, twist rate, muzzle thread, gas-block diameter, and compatible ammunition should be confirmed directly from the markings and current product specifications. The term “AR-308” alone should not be used to determine ammunition compatibility.
Mid-Length Gas System
The AR-308 Upper Only uses a mid-length gas system with a black nitride gas tube. Gas-system components must correspond with the barrel, bolt-carrier group, buffer system, and complete firearm configuration.
A qualified gunsmith should inspect the upper and any lawfully configured firearm before loading or operation. Incorrect headspace, incompatible components, gas-system problems, or improper fit can cause malfunctions, structural failure, severe injury, or death.
Large-Frame AR Compatibility
Large-frame AR components do not have the same level of dimensional standardization as AR-15 components. DPMS-pattern, ArmaLite-pattern, PA-10, and other .308-size receivers may differ in their upper-to-lower geometry, takedown-pin locations, rail height, barrel extension, bolt-carrier group, and handguard specifications.
The AR-308 Upper Only should not be assumed to fit every lower receiver marketed as AR-10, LR-308, PA-10, or AR-308. Compatibility must be verified using the exact manufacturer and generation of each component.
Confirm the Included Parts
The term “upper only” generally means that no lower receiver, stock, buffer system, fire-control group, pistol grip, or magazine is included. Customers should verify whether the package contains a bolt-carrier group, charging handle, muzzle device, handguard, and sights.
The listing title does not provide enough information to confirm every included component or option. Package contents may vary by seller or production batch.
Inspection and Storage
Inspect the upper for corrosion, cracks, deformation, bore obstructions, loose components, or shipping damage. Keep the assembly securely stored and inaccessible to children or unauthorized persons.
Verified Product Details
- Product type: Large-frame AR upper assembly
- Barrel length: 18 inches
- Barrel profile: A2 style
- Barrel material: 416R stainless steel
- Barrel finish: Stainless
- Gas system: Mid-length
- Gas tube finish: Black nitride
