Uppers I have for the LL at this point
At this point I have the following uppers that work with my rLL...
1. 223 (5.56 Nato upper)
http://quarterbore.com/images/qbi_bu...er_carbine.jpg
My 5.56 Upper is a fairly standard Bushmaster M4A3 upper with just a few notable additions. The upper receiver is a Bushmaster and the float tube is a Short KAC FF RAS. The Barrel is a Bushmaster 1:7 twist 14.5-inch barrel with a Phantom flash hider added. The weapon light on the right side of the RAS is a Surefire 962U and it included the tapestrip and push button tailcap. The pressure pad is neatly mounted into the TangoDown vertical grip.
2. 9mm Upper
My 9mm Upper consists of a RRA A4 upper that I had added the 9mm Case Deflector to. This upper is also using a Short KAC FF RAS tube which mounts a 16-inch Colt C MB 9mm NATO Barrel to the receiver. The barrel also has a GG&G flip up front sight. The mag block I am curently using is a RRA 9mm block. The only special thing that was needed to make the 9mm run with the lightning link is to cut the 9mm carrier to a SP-1 profile as shown in the following picture.
One problem I had with this bolt when trying out the LL came with the RRA 6-position CAR stock and the longer buffer tube that is used with these. These longer buffer tubes allowed the bolt to travel back into the stock further then a shorter CAR stock or an A2 stock using a normal rifle buffer. This caused the paddle on the link to bind and I need to get my 9mm Bolt Ramped if I am going to use the longer RRA sock with my Lightning Link in the future.
3. 7.62 x 39 Upper
My 7.62x39 Upper is nothing fancy by anybody's standard. It is an old Colt A1 upper that someone started to convert to post-ban status by cussing off the bayonet lug with a hack saw but they never got so far as to pin and weld a brake on her. To make this upper run with the LL all I needed to do was to pull the 7.62x39 bolt from the later "rounded end" AR-15 carrier and mount the bolt into a SP-1 carrier. This upper ran 100% during our test session using cheap 123-gr Wolf ammo.
Threaded Mode
