Afraid of evil extra terrestrian parasites? Time to get equipped with the same awesome alien species extinction device like Ripley (Sigurney Weaver) in Aliens:
The M41-A

With is fully functional hero models that fired 45 cal. blanks, and blank 12 guage shot gun rounds, to the ultra-slick O.D. green shrounds, this prop is the rare weapon that seemed it could actually do what it appeared to do in the movie! Shoot! This ain’t no ray gun, baby!

Here you’ll find a really neat how-to, so you soon might call yourself a proud owner of this instant classic!

Made from three real world weapons, the M41-A even has a cool sounding name. The World War II vintage M1A1 Thompson makes up the bulk of the weapon, and the Remington 870 shotgun is the guts for the “grenade launcher”. Carefully hidden inside a SPAS-12 heat shield cage and pump handle. The filming hero prop was made with a metal shroud, and is truly a work of art.

In case you are a wanna-be Imperial Stormtrooper, this make-your-own-blaster-how-to definitely will make you happy.

Via TechEBlog.com