questions for an Uzi build

[paintballdude902]

been looking into doing an uzi build with my tax return.

if u buy the parts kit i know i need the feed ramp, barrel, sling mounts and handguard mounts.

i found a barrel and a ready to weld receiver.

barrel is 90 bucks
parts kit 170
receiver is 100
weld up kit 95


weld up kit contains

U075-1 Trunnion (semi auto) - $22.50
U075-2 Bayonet lug - $13.50
U075-3 Rear hand guard post - $7.00
U075-4 Rear sight base - $11.50
U075-5 Front sight base - $18.50
U075-6 Feed ramp - $25.50
U075-7 Back plate - $17.50
U075-8 Bolt guide bar - $8.50
U075-9 Sling swivel - $18.00
U075-10 Sling swivel pin - $5.00
U075-11 Trigger housing lug - $25.00
U075-12 Ejector - $11.00
U075-13 Ejector rivet - $3.00
http://www.uzigunparts.com/weldkit.html

what full auto parts need to be replaced?