MCR 5.56x45 NATO 16.25" 1-7 Twist Heavy Barrel Assembly

Name: MCR 5.56x45 NATO 16.25" 1-7 Twist Heavy Barrel Assembly
Brand: FightLite Industries

FightLite Industries · Barrels

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MCR 5.56x45 NATO 16.25" 1-7 Twist Heavy Barrel Assembly

Best price

$729.99at GrabAGun

Sale checked Nov 14, 2026

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Fits and works with

Caliber: 5.56 / .223 · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Gas system: Mid-length · Handguards
Muzzle thread: 1/2x28 · Muzzle devices
Barrel length: 16.25" · Handguards

Specifications

Manufacturer: FightLite Industries

Compatibility

Caliber: 5.56 mm NATO
Chamber: 5.56 NATO
Gas system: Mid-length
Muzzle thread: ½ x 28
Platform: AR-15

Dimensions and weight

Barrel length: 16.25"

Materials and features

Twist rate: 1:7
Profile: Heavy / HBAR
Finish / lining: Phosphate
Color: Black

Where to buy

Store	Price	Availability	Buy
GrabAGun Best price	$729.99Salechecked Nov 14, 2026	Check store	Buy at GrabAGun
Brownells 17.76% off · ends Nov 15 · exclusions apply	$729.99checked Nov 14, 2026	Out of stock	Buy at Brownells
OpticsPlanet	$729.99Salechecked Nov 14, 2026	Out of stock	Buy at OpticsPlanet

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Brownells	$729.99	$729.99	$729.99
GrabAGun	$729.99	$729.99	$729.99
OpticsPlanet	$729.99	$729.99	$729.99

Since Sep 28, 2026.

About this part

The MCR 5.56x45 NATO 16.25" 1-7 Twist Heavy Barrel Assembly is a 16.25" 5.56 / .223 barrel from FightLite Industries with a mid-length gas system. It's sold by 3 stores, all at $729.99.

From the manufacturer

ARES Defense MCR spare barrels are ready swap with your existing quick change barrel system. Barrels include adjustable gas system. Available in 16.25" or 12.5" lengths. Chambered in 5.56x45mm NATO & feature chrome lined, 1-7 twist bores. Muzzle include A2 flash hider & A 1/2-28 threads. Fit ARES Defense MCR weapon systems only. Mfg: Fightlite Industries