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Ballistic Advantage
Overview
The Ballistic Advantage AR-15 Modern Series 5.5 Barrel is designed for 9mm applications, utilizing a blowback gas system for reliable cycling. This configuration is particularly advantageous for builds focused on maximizing performance in a compact format, as the shorter barrel length enhances maneuverability without sacrificing function. You'll commonly find this barrel in pistol-caliber carbine builds that prioritize versatility and lightweight handling.
Specifications
Available Merchants(7)
Prices checked
Price Alert
Price and stock
Availability is good for the Ballistic Advantage AR-15 Modern Series 5.5 Barrel: it was in stock at one retailer or another nearly every day in September 2026, and today 5 of the 7 retailers we track have it in stock. Prices barely moved in September 2026, holding around $83.99, so there haven't been real sales lately. Buying today, the lowest price is $82.49 at Ammunition Depot, which matches the best price we saw in September.
Prices checked · refreshed daily across 37 retailers
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