The Thompson M1A1 is a really nice gun, most commonly known for it's use in gangster films and WWII films. Used through the early part of the 1900's the Thompson was the predecessor of the modern day machine gun.
Firing at 330fps, nearly all metal construction and very authentic wood finish this gun is a real must for any collector. But then if like me, you do not like the Thompson you can always convert it to the M41 Aliens Pulse Rifle as it fits beautifully into the G&P kit. 

• Select fire: semi/full auto
• Muzzle velocity: approx 330 fps tested with 0.2 gram bb
  
• ROF: Approx 800 rpm
  
• Hop up: adjustable
  
• Metal front and rear sights
  
• Metal upper receiver, barrel and butt plate
  
• Version 6 gearbox
  
• 47 round capacity magazine, TM compatible
  
• Weight 3200 gram
  
• Mini type 8.4v 1100 mAh battery and charger included
  
• BB clearing rod
  
• Sling
  
• Speed loader
  
• This gun MUST use high Grade .2g or .25g BBs.