what means P.m on th ring
plated sterling silver
+p means an increase in barrel pressure behind the bullet, or a hotter(faster) load.
If you mean can you fire non plus P ammo in a gun rated for plus P, yes, you can safely do that as long as it is the correct caliber.
Shotgunworld.com
Short answer,,,, NO.... Not without extensive modifications. There is no room to cut threads in the barrel with the cast pot metal sight in the way. Besides, getting the tax stamp and the suppressor would cost more than the gun is worth. I guess none of that matters if you are a hitman for the mafia. :P In that case, just place an empty 20oz soda bottle over the barrel.
It's the factory "PROOF" testing stamp
You can remove the ong barrel from the Gamo P-25 Tactical although that will not make the barrel shorter.
6mm airsoft pellets althought if it fits down the barrel it usual goes 1 or 2 ft like say a mini umbrella ;P
Most BB guns use a "Smooth Bore" barrel. It just a hollow tube for a barrel. They are not consistently accurate. Speed does help some but not much. Pellet Guns and Rifles usually use a rifled barrel, one that has grooves in it. This makes the pallet spin and gives it more accuracy than a BB. There are combination BB and pellet guns made, but they are also smooth bore. I know of one BB/Pellet gun, the Gamo P-23, that is a combo bb/pellet gun. It uses a rifled barrel and special "Led BB's." The common Steel BB will ruin a rifled barrel that's why the Gamo P-23 uses "Led BB's." This barrel makes the BB spin and more accurate. Speed will increase the distance and power of a projectile.
i will purchase it from you...J P Lovell was my great great great grandad
The man with the gun obviously. By the way you dont mean the orange cat cartoon do you :P