It came as a surprise several years ago when SIG Sauer introduced a direct gas impingement system AR-style variant, the M400 semi-automatic-only carbine, which has some distinct external and internal differences from most AR-style rifles. You can learn more about the M400 in this "Rifleman Review" segment from a recent episode of American Rifleman TV. For more videos like this, visit AmericanRifleman.org/artv.
This Armaspec upgrade to the AR-15’s standard buffer and spring includes a trio of interchangeable buffer weights that allow the user to tune it to his or her rifle/load.
Hydra Weaponry—the designer and manufacturer of the modular Marck-15 Hydra Weapon System and Maine’s largest firearm employer—has expanded into a larger facility.
The M4A2 Patrolman’s Carbine from Bushmaster Firearms is the first in a line of AR-15s designed to bring back the standard, carbine-length firearms that have long been a staple of American shooting enthusiasts.