This week Sig made official the news of their newest M400 series rifle — the Tread — which includes a line of branded accessories to go along with factory-standard features.
The Tread is an optics-ready, aluminum frame rifle with a mid-length gas system, 1-in-8-twist 16-inch stainless barrel and free-floating M-LOK handguard. Added to this are a single-stage polished/hard-coat trigger, ambi controls, and a Magpul SL-K 6 position telescoping stock.
Then comes the promised user-configurable accessory line to include a 13-inch and 15-inch M-LOK handguard, ROMEO 5 Optic, adjustable flip-up sights, ambi charging handle, three chamber compensator, M-LOK front sight adapter, as well as M-LOK hand-stop and vertical grip kits.
Chris “Cav” Cavallard with the Sig Sauer Academy does a walk-through with the sub-$1000 Tread in the above, touching on everything from the taper lock on the muzzle device to the storage compartment on the pistol grip.
Below, for the record, is the company’s pitch for why the gun is a good fit.