| Olympic Arms OA-93 | |
|---|---|
| Type | Carbine AR-15-style pistol |
| Place of origin | United States |
| Production history | |
| Designed | 1992 |
| Produced | 1993 |
| Specifications | |
| Mass | 4.46 lbs |
| Length | 17 inches |
| Caliber | 5.56×45mm NATO or7.62x39mm |
| Barrels | 6.5", button rifled, 416 stainless steel |
| Action | Gas Operated Semi-automatic Action |
| Feed system | 30 roundSTANAG magazine (OA-93 and OA-98) Permanent 30 round magazine (OA-96) |
| Sights | Iron |
TheOA-93 is anAR-15 derivativepistol manufactured byOlympic Arms. The weapon is similar to the Colt M5 concept that uses a gas piston instead of a direct-impingement tube.[1]
Lacking abuttstock or buffer tube, the OA-93 disperses recoil through a specially designed flat top upper receiver similar to theArmalite AR-18.[2][3][4] 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 theOA-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 viastripper clips.[5]
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.[5]
A piston driven carbine based on the pistol was made in 1993 and after the expiration of theFederal Assault Weapons Ban from 2004 to 2007.[4]