Jim Fuller and Rifle Dynamics have wanted to bring this stock adapter to market for a long time. Earl Pittman of IWC got involved and helped refine Fuller's design to bring this project home. The Rifle Dynamics adapter offers the somewhat unique feature of allowing the use of an AR-15 end plate and different sling set-ups. This feature allows many different sling-mounting options for the individual users. Any sling adapter that fits on the AR buffer tube should work like the MagPul ASAP. This adapter is easy to install without modification to the AK with no need to cut off the stock tang, as it fits inside the adapter and tube. Mfg: Rifle Dynamics SPECS: Aluminum construction, matte black anodized finish. Fits stamped AK47/74 receivers with rear tang. Will not fit: Milled receiver, Chinese guns , PSL, Vepr, Yugo, any side/under folder stocked rifle, any receiver with stock tang removed.