Bowing to customer demand for a longer top rail version of its AUG A3 M1 platform, Alabama-based Steyr Arms announced it is now in full production on a new model it is calling the AUG A3 M1 Long Rail.

The Steyr AUG A3 M1 Long Rail

According to the press release, the top rail on this version of the AUG A3 M1 boasts 25 numbered slots. That’s two more than the original flat-top AUG A3 SA. This provides an increase in surface area to use optics and iron sights. The longer top rail extends a full 5.5 inches back from the receiver, placing its rear edge nearly in line with the front of the ejection port for improved placement of a rear iron sight.

Chambered in 5.56x45mm, the AUG A3 M1 Long Rail also includes lightening cuts along either side and milled areas underneath to reduce weight. Speaking of weight, the new variant weighs in at 7.8 pounds, and it’s available in Black, Mud, OD Green or White. It also comes with either the standard AUG stock or the NATO-style stocks, both of which accept STANAG mags.

It ships with one translucent polymer 30-round magazine and an owners manual. The MSRP comes in at $2,099. If you just want to get the rail, it’s available for $145. See below for specs. For more on Steyr Arms, visit

Long Rail Specs

Operation: Adjustable, short-stroke, gas-piston, semi-automatic
Magazine type/capacity: Polymer double-stack detachable box/30 rounds (10- and 42-round avail.)
Receiver material: Hard Eloxal-coated aircraft aluminum
Caliber: 5.56x45mm
Barrel: 16.375-inch chrome-lined CHF barrel (18.375 inches with muzzle brake)
Rifling: 6 grooves, 1:9 RH Twist
Sights: 25-slot Picatinny rail
Safety: Two-position, trigger-blocking
Trigger type: Single-stage
Pull weight: 9 pounds, 8 ounces
Stock material/type: Reinforced synthetic Black, OD Green, MUD or White (NATO available)
Length of pull: 15 inches
Drop at comb: 0.570 inch
Drop at heel: None
Recoil pad: Elastomer; 0.3-inch thick
Sling swivels: Two (front QD, rear reversible)
Pistol grip: Integral
Checkering: None
Weight, empty: 7.8 pounds
Overall length: 28.15 inches
Included accessories: Owner’s manual and one 30-round magazine
MSRP: $2,099 (rail separately: $145)

Up Next

US Secret Service Releases Pre-Solicitation Notice for New 5.56x45mm Rifle

The United States Secret Service expects to award the contract for its new 5.56x45mm...