Fn P90 - Page 2

scouter27 · October 11, 2001, 07:15 PM

The mag is the only problem that I've heard of. It also spits all the rounds out if you drop an un-emptied durring a reload, IIRC.

Are there rounds that will not penetrate that much? Could be dangerous in a populated area.

**4V50 Gary** · September 23, 2002, 02:17 PM

Took the one day armorer's course on the FN P90. It is remarkably simple. Field strip begins with removal of the magazine. The magazine disassembles quite easily. Depress the floorplate release and slide the floorplate off. The spring and follower comes out along with two rollers. The magazine does not have any fancy mechanism to cause the bullets to turn perpendicular for feeding. Rather, it's through channels moulded into the plastic that does this. Nothing to break!

Once the magazine is removed, push the huge takedown button that is found on the receiver. This allows the receiver mechanism to be pushed forward and out of the plastic frame. Separate the moving pats group (bolt group) from the barrel/optical sight group. Disassembly of the latter requires an open ended wrench to remove the muzzle break. This allows the barrel to be pushed back slightly and usncrewed clockwise. The barrel is then withdrawn from the rear and the barrel spring pulled out from an opening on the top of the receiver. The barrel lock (which serves the dual purpose of securing the receiver to the plastic frame) may now be removed along with its spring. Charging handle slips off next.

Disassembly of the moving parts group is easy. Simply use a knife to remove the snap rings that are attached to the end of each of the dual guide rods. New snap rings are required for reassembly. The bolt slips off anda roll pin punch is required for further disassembly.

The hammer group comes out from the rear of the stock. The buttplate slides up for removal and exposes the hammer group. There's a simple lever on the hammer group that is thrown up and allows the hammer group to be withdrawn en-bloc. The trigger may be removed and requires a paperclip or screwdriver. After the trigger comes out, the operating rod (connects the trigger to the hammer group comes out next.

Won't go into further details (should have pictures) but the entire thing is so simple it's clever.

One nifty feature I didn't notice until the class is that the gun features back-up iron sights. On both sides of the rail that protects the optical group, there are crude iron sights that allows the user (right or left handed) to sight the weapon and fire.

September 23, 2002, 02:17 PM	#27
4V50 Gary Staff Join Date: November 2, 1998 Location: Colorado Posts: 21,863	Took the one day armorer's course on the FN P90. It is remarkably simple. Field strip begins with removal of the magazine. The magazine disassembles quite easily. Depress the floorplate release and slide the floorplate off. The spring and follower comes out along with two rollers. The magazine does not have any fancy mechanism to cause the bullets to turn perpendicular for feeding. Rather, it's through channels moulded into the plastic that does this. Nothing to break! Once the magazine is removed, push the huge takedown button that is found on the receiver. This allows the receiver mechanism to be pushed forward and out of the plastic frame. Separate the moving pats group (bolt group) from the barrel/optical sight group. Disassembly of the latter requires an open ended wrench to remove the muzzle break. This allows the barrel to be pushed back slightly and usncrewed clockwise. The barrel is then withdrawn from the rear and the barrel spring pulled out from an opening on the top of the receiver. The barrel lock (which serves the dual purpose of securing the receiver to the plastic frame) may now be removed along with its spring. Charging handle slips off next. Disassembly of the moving parts group is easy. Simply use a knife to remove the snap rings that are attached to the end of each of the dual guide rods. New snap rings are required for reassembly. The bolt slips off anda roll pin punch is required for further disassembly. The hammer group comes out from the rear of the stock. The buttplate slides up for removal and exposes the hammer group. There's a simple lever on the hammer group that is thrown up and allows the hammer group to be withdrawn en-bloc. The trigger may be removed and requires a paperclip or screwdriver. After the trigger comes out, the operating rod (connects the trigger to the hammer group comes out next. Won't go into further details (should have pictures) but the entire thing is so simple it's clever. One nifty feature I didn't notice until the class is that the gun features back-up iron sights. On both sides of the rail that protects the optical group, there are crude iron sights that allows the user (right or left handed) to sight the weapon and fire. __________________ Vigilantibus et non dormientibus jura subveniunt. *Molon Labe!*

October 11, 2001, 07:15 PM	#26
scouter27 Senior Member Join Date: May 17, 2001 Location: pennsylvania Posts: 420	The mag is the only problem that I've heard of. It also spits all the rounds out if you drop an un-emptied durring a reload, IIRC. Are there rounds that will not penetrate that much? Could be dangerous in a populated area.