0Mr. StealthBest Answer 10 years ago ReplyUpvoteHonestly, Killerk's SR-V1 isn't that good. The firing mechanism is pretty bad. If you want a good knex gun, try building one by Viccie.B1993, I Am Canadian, or The Dunkis. Here is a list of the good knex gun builders. Or you can build my VSS. It's pretty good. Hope this helps!