JRT
NES Member
The silver slide has been scientifically proven to add 40 to 750 feet per second which ups the one shot kill potential by almost 62.8%. However, the black slide will increase accuracy when coming out of a tactical roll which should enable you to take out 5, maybe even 6 terrorists with ease.
I know....it's a tough choice.
Take the silver slide and stack multi-shot, easy.