With the telescopic stock retracted, MOST are about 22-23 inches long- there are some shorter- just under 20 inches. Remember there are several different models of the MP5.
33 inches/840mm with the buttstock extended and the standard A2 flash suppressor and standard buttstock.
They come in various lengths, dependent on the buttstock and barrel length.
There is no set length, but generally from the size of a pistol to that of a short rifle.
It means that the buttstock of a long gun can be adjusted to fit different shooters.
556 mm with stock retracted, 730 mm with stock extended.
The HK 416 Gas Blowback airsoft rifle measures 31.7 inches with buttstock collapsed and 34.8 inches extended.
some have larger blade screws( 6 inches long) inside the buttstock, remove the butt plate and it will be recessed inside, you need a long, large screwdriver.
I'm not sure how the system of purchasing a pistol in Florida works, but converting a rifle into something which the BATFE would class as a pistol without being able to legally own a pistol would be illegal, not just in Florida, but in the entire US. Now bear in mind that, to be classed as a pistol, it would have to have just the pistol grip, and no buttstock. If it's a combination of pistol grip and buttstock, it's still considered a rifle, and is still legal, so long as the rifle is still compliant with state laws. Some states (New York, New Jersey, California, Connecticut, Cook County Illinois) still have so-called assault weapons bans in effect.
No. CCW laws specifically state that long barreled weapons (which a submachinegun with a buttstock would be considered, regardless of barrel length) and fully automatic weapons may not be carried. A semi auto pistol based on the design of a SMG would be legal, however.
They would die, and it wouldn't take very long.
Round knob refers to the pistol grip of the buttstock. The wood can be shaped with a round knob, or a flat knob which is abreviated RK or FK. Long tang is the top tang of the breech block frame which is the metal that comes down the top of the buttstock and screws into the wood. Usually it is 1/2" wide and about 4"-5" long. Some Superposed guns have a short tang which is about 2" shorter. Typically a round knob Superposed with a long tang is more desireable than the flat knob or short tang.
it would live long or stand up