Olympic Arms OA-93

• Name — Olympic Arms OA-93 • Origin — United States • Type — Carbine AR-15-style pistol • Is Ranged — YES • Design Date — 1992 • Production Date — 1993 • Weight — 4.46 lbs • Length — 17 inches • Caliber — 5.56×45mm NATO or 7.62x39mm • Barrels — 6.5", button rifled, 416 stainless steel • Action — Gas Operated Semi-automatic Action • Feed — 30 round STANAG magazine (OA-93 and OA-98) Permanent 30 round magazine (OA-96) • Sights — Iron

Lacking a buttstock or buffer tube, the OA-93 disperses recoil through a specially designed flat top upper receiver similar to the Armalite AR-18. However, the passage of the 1994 Crime Bill required Olympic Arms to perform modifications to the basic design to continue selling them.

The first revision to the OA-93 was the OA-96 in which a 30-round ammunition well is pinned and welded in place so that it cannot be detached. In addition, the OA-96 has a button in the rear which opens the upper receiver and can then be loaded manually. The second revision followed two years later. OA-98 used a detachable magazine but the body was skeletonized to reduce the weight below the 50 ounce restriction to allow the OA-98 to have one more feature to be compliant with the 1994 Crime Bill. A piston driven carbine based on the pistol was made in 1993 and after the expiration of the Federal Assault Weapons Ban from 2004 to 2007.