One of several used rifles that just arrived in shop.

near mint condition Sig Sauer Sig556 in a Massachusetts compliant configuration with fixed stock and proper pinned and welded muzzle device.
rifle overall is in very clean condition, takes AR mags, factory built-in sights and ambidextrous safety.   many other higher end features.  Sig556 are known for extremely good quality construction.
piston operated with adjustable gas system.

available in Littleton at Battle Road firearms.
text 774-249-0380 for more information