The CA (Command Actuation) 90 degrees center variant uses a 91 degrees detent groove that requires a heavy and deliberate rotation of the ASF lever to move the levers from SAFE to FIRE, and FIRE to SAFE, and designed to reduce the likelihood of unintentional and accidental selector actuation, an ASF equipped with the CA center will spring back to to original position without the user's deliberate intent to rotate the safety. ASF CA requires a few cycles to break in.
An ASF-90 equipped with the CA (Command Actuation) center effectively shares the quickness of a short throw safety but retains the 90 degrees throw. If the lever is rotated short of the mid point at 45 degrees, the lever snaps back to its previous position. When the user rotates the safety with intent and purpose past 45 degrees, the levers practically snaps forward to the intended position.
There will be no short throw safety with the CA center for the reasons aforementioned. A 50 degree ASF with a CA center effectively means the "snapping forward" motion will take place at 25 degrees, it's cutting too close for our
ASF-90 is a conventional (rotate to 90 degree for FIRE/SEMI) semi auto selector with standard (non-offset) levers.
Work began in Dec. 2018 to create a safety that’s an embodiment of our not inconsiderable experience in AR15/M16 selector design and knowledge over the years.
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 and uses an 800 lbf 420 stainless steel
roll pin to hold the levers in place but doesn't handle any load. One of
the design goals dictates there be little to no wobble between the
lever and center and we’ve called for very tight tolerances
(+0.001/-0.00) on the ASF's lever and center interface to achieve that. < NOTE: +/- 0.002 combined tolerance (+/- 0.001 on the levers and center's lever attachment interface) can, on rare occasions, exhibit minute movement. This is normal and unavoidable. The 0.002 of movement is almost imperceptible and doesn't affect ASF's function.
We are known to many for the dimpled pattern we use on some control surfaces (AA, or All Angles, is our designation). ASF levers are serrated, not dimpled. As the lever rotates, the user’s finger slides on the lever, anything but serrations along the length of the lever only impedes that movement and creates friction for no benefit. Serrations diagonal or perpendicular to the length of the lever are similarly unhelpful. Serrations parallel to the lever's length help mitigate lateral movement, and do not impede the finger's sliding motion. ASF lever's profile isn't square, its outer most portion is somewhat tapered for a reason. When the user’s hand holds the pistol grip, the profile of the ASF lever conforms to angle of the thumb's pad.
For our friends and customers that wish to see dimples on the ASF, there is a single dimple on both sides to function as a position indicator (in lieu of a pointer), it’s elegant and simple. As we're fond of saying, attention to detail matters in its application.
The end cap is for those that don’t wish to have a lever on the weak side of the receiver. With the end cap, ASF becomes a convertible selector (between ambidextrous and non-ambidextrous.)
ASF is shipped with a selector spring, an FCD 17-4 SS nitrided selector detent, two levers (or one lever, with an end cap) and 4 roll pins (two are needed for installation, with 2 spares). The ASF is shipped with the levers partially assembled without roll pins.
ASF centers are billet machined in 8620, heat treated and black nitrided. Levers are billet machined in 8620 and black nitrided.
Made in the USA.
For ASF installation instructions, please visit this page: ASF Installation
WARNING: This product can expose you to chemicals including metallic nickel, chromium and lead, which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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