Proof Research AR Steel .338 ARC Threaded Rifle Barrel 16 inch Pistol Length 1-8 Twist 5/8-24 Stainless Steel

Proof Research AR Steel .338 ARC Threaded Rifle Barrel 16 inch Pistol Length 1-8 Twist 5/8-24 Stainless Steel - Barrel for AR-15 - view 1
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Proof Research

Overview

The Proof Research AR Steel .338 ARC Threaded Rifle Barrel 16 inch Pistol Length 1-8 Twist 5/8-24 Stainless Steel is a barrel. Compare prices from multiple merchants and find the best deal.

Specifications

MPN144855
Caliber6mm ARC
Gas System LengthPistol
Barrel Length16
Twist Rate1:8
Thread Pitch5/8x24
CoatingStainless
Barrel ProfileMedium
FinishStainless

Available Merchants(2)

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Optics Planet logo
Optics Planet
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$649
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BattleHawk Armory
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$649

Price and stock

Availability is good for the Proof Research AR Steel .338 ARC Threaded Rifle Barrel 16 inch Pistol Length 1-8 Twist 5/8-24 Stainless Steel: it was in stock at one retailer or another nearly every day in August 2026, and today both retailers we track have it in stock. Prices barely moved in August 2026, holding around $649, so there haven't been real sales lately. Buying today, the lowest price is $649 at Optics Planet, which matches the best price we saw in August.

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