All new "SE" models in the M.A.R.C. 901 family feature a monolithic upper receiver with a fixed rail at the 12 o'clock position and provisions to mount rails at the 3, 6 and 9 o'clock positions. The AR901 features a flat-top upper receiver and a tubular forend, with provisions to mount rails at various positions. There are several advantages to these modular rail positions, which make the firearm more customizable and comfortable for users. The design allows shooters to position rail sections where needed for accessories such as bipods, lasers, lights, and more. With the choice to mount only necessary rail sections, users can reduce the weight and diameter of the upper receiver, making it easier to hold. The profile of the upper receiver is also smoother, with fewer sharp edges.
Three SE models -- the LE901-16SE, LE901FDE-16SE and LE901-18SE -- all also feature ambidextrous operating controls for the magazine release and bolt catch, and a single-side reversible fire selector. All three of these models are designed with a free-float barrel, VLTOR buttstock and locking folding sights. Unique to the LE901FDE-16SE is the flat dark earth finish on the upper and lower receiver, along with FDE furniture. For users who prefer a longer barrel, the LE901-18SE with its 18-inch barrel is the optimal choice. MSRPs for the three models: LE901-16SE - $2,181; LE901FDE-16SE - $2,281; and LE901-18SE - $2,181. The LE901-16SE and LE901FDE-16SE models weigh 8.42 pounds and all models have a 1/12 RH twist.
The fifth model in the M.A.R.C. 901 family, the AR901-16S, is the perfect balance between LE901 quality and affordability. It features a free-floated barrel and user-configurable tubular handguard with rail mounting provisions beyond the standard 3, 6, 9 and 12 o'clock positions to include rail mounting positions on 16 different planes. The AR901-16S has a B5 Bravo buttstock and measures 34.24 inches with the stock retracted, or 37.5 inches with the stock extended. It has a 1/12 RH twist, weighs 8.24 pounds, and has an MSRP of $1,623.
Like the original model LE901-16S, all of the new LE901 models are multi-caliber, single serial number, modular rifle systems. Chambered for .308 Winchester, the innovative lower receiver and bolt carrier design allow users to easily swap the upper receiver group for any Colt Mil-Spec upper chambered for 5.56 x 45 NATO (.223 Remington). The Adapter Block Conversion Kit includes the needed parts to adapt the 5.56 x 45 NATO upper receiver assembly to the M.A.R.C. 901 lower receiver. These Adapter Block Conversion Kits will be sold separately and are available in the Colt web store for $199.99 (part number SP99415).
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