“FN 20-100037 AR-15 5.56x45mm NATO 10.50″ Button Rifled M16 Profile Carbine Length Gas System, Black Phosphate Cold Hammer Forged Chrome Lined” has been added to your cart. View cart

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July 3, 2026Proof Research 130384 AR-Style Barrel 6mm Arc 20″ Rifle +1 Length Gas System 1:7.50″ Twist 4 Grooves, 5/8″-24 tpi, Stainless Stainless
$649.00
Proof Research 130384 AR-Style Barrel 6mm Arc 20″ Rifle +1 Length Gas System 1:7.50″ Twist 4 Grooves, 5/8″-24 tpi, Stainless Stainless
4 in stock
SKU: TSW|152046
Category: AR Barrels
An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing. Excellent erosion wear characteristics and corrosion resistance.
| UPC | 843068130384 |
|---|---|
| Manufacturer | Proof Research |
| Manufacturer Part Number | 130384 |
| Barrel Length | 20" |
| Caliber/Gauge | 6MM ARC |
| Length | 20" |
| Model | AR-Style Barrel |
| Product Type | Accessory-Barrels |
| Rate of Twist | 1-7.5 |
| Shipping Weight | 0.0 |



