Hera Arms 18" Heavy Barrel — .223 Rem, 1:9 Twist, Target Crown (no gas hole for Straight-Pull AR15) with BCG
Hera Arms’ 18" heavy contour barrel for straight-pull (bolt-action) AR15 builds and replacement barrels. Button-rifled and heat-treated for long life and consistent accuracy; finished in a durable black coating as standard. This package includes a matched, CIP-proofed mil-spec BCG — ready to drop into a straight-pull conversion or a custom build. The barrel features a target crown and no gas hole for clean harmonics and uncompromised accuracy in non-gas (straight-pull/bolt) systems.
£540.00 Inc. VAT
Why choose this barrel
Precision button-rifled bore and heat treatment for long service life and consistent group sizes.
Heavy contour for improved stiffness and harmonic stability — better for precision shooting and longer strings of fire.
Delivered with a matched, CIP-proofed mil-spec BCG for guaranteed fit.
Technical specifications
Calibre: .223 Rem
Length: 18 inches.
Twist rate: 1:9 (stabilises typical .223/5.56 projectiles 55–69 gr).
Contour: Heavy.
Muzzle: Target crown.
Rifling: Button-rifled.
Heat treatment: Yes (factory heat-treated).
Finish: Black coating (standard).
Included: Matched, head-spaced and CIP-proofed mil-spec BCG.
Thread options
Muzzle threads: None (target crown). If you require a threaded muzzle, a 5/8"x24 threaded variant is available.
Notes & fitment
Designed for straight-pull (bolt-action) AR15 systems or as a replacement barrel in compatible receivers. RFD delivery for gunsmith fitting.
In the United Kingdom, this item can only be purchased by a Registered Firearms Dealer or by an individual with a variation on their FAC.
Export of firearms and component parts require an approved UK export licence issued by the Department for International Trade.
Unless otherwise stated the price is for a single item, in one colour.
Dragonfly Ordnance accepts no liability for the use (or misuse) of this equipment.
Pictures are for reference; product delivered may differ slightly to that shown.