Some more information on the RPA headstamp. The full name of the plant at that time was:
Department of National Defense
Camp General Antonio Luna
This came off of the 9 mm Para box, which was lot CDNP 97-01, and may be the only lot manufactured. The production facility was unable to supply all the needs in other calibers, and the information a friend of mine in the Philippines received was that they decided to concentrate their production on 7.62 NATO, 5.56, and .45. They may some .50 Caliber, but there were big problems with it, including rim breakage.
The 9 mm ammo that is in this country originated at the military Base, Camp General Antonio Luna, where it was made. Contrary to my last post on this, while an Army facility, it may have actually been packaged for commercial sale in the Camp store, where they sold ammo to authorized military personnel and gun clubs. The 9 mm, although obviously made in 1997, evidently did not show up until 2001. The box is somewhat commercial in look, with a picture of the cartridge on the top, and a bullseye target with a red symbol of unknown meaning on top of the target. It has the commercial warning “WARNING: Keep out of Reach of Children” on each end tab. The box is basic white, with mostly black print. The Camp is a Department of Defense facility, mostly manned by the Army. It is not impossible that this 9 mm Para ammo was sold to Police, but in light of the information I have, not likely since what was acquired came right from the Camp, not the police, and there appears to have been very little 9 mm Made.
Inquiries have been made to see if a BMP headstamp is found on 9 mm Para, but to date, all the information I have been able to get from friends in the Philippines says it was not, although it is rumored in this country that there is a round in a collection so headstamped. I have not confirmed that. Of course, any military caliber could show up in the future. As far as I know, the primary, current caliber of RPA pistols and SMGs is .45.