depends what consol your using... if using xbox= have your gun and compatable weapon modification enter your pipboy and hit the right buton or RB (not the D pad)... the rest is pretty self explanitory.
You cannot get a silencer for the assault carbine in Fallout New Vegas I'm afraid, the only guns you can get silencers for in New Vegas are the sniper rifle, the varmint rifle, 12.7mm pistol and machine gun.
to obtain an anti-material rifle in Fallout: New Vegas you have to be at least level 26 for vendors to start selling them at stores.
Fallout New Vegas is a role playing game.There are several powerful weapons available to find or to buy.The Sniper Rifle is one of the better weapons.
MF Cells, 5 cells per shot
You can get a sniper rifle anywhere. First, the unique one, you get that North of Cottonwood, called the "Sniper's Nest," and it's called "Gobi Scout Champion Rifle."
You can buy it from the Gun Runners, and if they don't have it; just wait for 24 hours and check if they have it, if not again, keep repeating.
NCR Ranger Combat Armor
I just bought one on dec. 14 and it was $560
I think you mean the 'Anti-material Rifle'. It can be bought from the gun runners, south of the strip or taken from some veteran NCR rangers.
SPS: Special Purpose Synthetic XCR: Xtreme Conditions Rifle VTR: Varmint Target Rifle
The 204 Ruger is actually a rifle cartridge, therefore does not come with any accessories. It is primarily intended for use with Ruger's Varmint rifle.
There are several. There is the Tesla-Beaton Prototype, the Mysterious Magnum, The YCS/186 gauss rifle, the Pulse gun, Euclids C-finder and many more. They are my preferable selection of weapons.