ASF-50Q is a short throw (rotate to 50 degree for FIRE/SEMI) semi auto selector with q (offset) levers. ASF (Ambidextrous Selector, Forward Controls) and SOLGW's "The Quick" is a joint project between FCD and SOLGW. ASF was designed from the ground up to be a defense/duty/combat safety selector, its mission is quite aptly reflected by the way its levers are attached the center, via a stainless steel roll pin. The lever to center interface is immensely strong, the high shear strength (800 lbs) 420 stainless steel spring steel roll pin simply holds the two in place, and doesn't handle any load. One of the design goals dictates there be no wobble between the lever an Mfg: Forward Controls Design