anthonyApes Posted December 16, 2018 Share Posted December 16, 2018 Hi guys im new here, i just need help finding what side rails i need for my m4, i have got the spartac srt-18 multi long rail and it does not come with a lower rail and side rails and i dont know what size rails i need to mount it because i tried some and the holes dont line up and i dont wanna buy the wrong size ones. Link to comment Share on other sites More sharing options...
Supporters Prisce Posted December 16, 2018 Supporters Share Posted December 16, 2018 Picture? Paints a thousand words y’know. Link to comment Share on other sites More sharing options...
anthonyApes Posted December 16, 2018 Author Share Posted December 16, 2018 Link to comment Share on other sites More sharing options...
Supporters Prisce Posted December 16, 2018 Supporters Share Posted December 16, 2018 I believe you’ll have to change the whole rail to get what you want. I could be wrong, happens more often than not, but I haven’t seen a product that does what you wish. Link to comment Share on other sites More sharing options...
anthonyApes Posted December 16, 2018 Author Share Posted December 16, 2018 oh ok thanks for the help. Link to comment Share on other sites More sharing options...
Guest Posted December 16, 2018 Share Posted December 16, 2018 Depends how much kidifyingvyouveant to do. Buy blank rail sections, drill them and tap the rail Link to comment Share on other sites More sharing options...
anthonyApes Posted December 16, 2018 Author Share Posted December 16, 2018 hey guys i think i found the rails i need i need a 76mm from the 1st hole to the 3rd hole and i found a kit on amazon that helped with this picture i will show and then i measured the holes on my gun and i found a match Link to comment Share on other sites More sharing options...
Supporters TheFull9 Posted December 16, 2018 Supporters Share Posted December 16, 2018 What you have is basic knock-off of the Knights Armament URX 3 handguard. If yours replicates the original, the way you add rail to the sides/underneath is by slotting nuts inside channels in the rail and putting corresponding bolts through the holes to meet the nuts. The rail segments were proprietary to the URX (this is an old, obsolete handguard design). There are/were airsoft replicas made by other companies, but airsoft brands almost never use the name of the real thing they clone to allow for easy search. Fact is you are far better off not adding rails unless you categorically need tons of accessories, and there's already enough rail for anything you'd need on that handguard i.e. a small light up front for CQB (if you play in the dark/at night) and your front iron sight. These rail segments you've pictured look like very cheap M-LOK or Keymod segments which might not fit your gun at all. Link to comment Share on other sites More sharing options...
anthonyApes Posted December 16, 2018 Author Share Posted December 16, 2018 yeah the side rails i dont need i only wanted to find a rail for underneath because i feel more comfortable with a grip thats the only reason i want a lower rail. Link to comment Share on other sites More sharing options...
AshOnSnow Posted December 16, 2018 Share Posted December 16, 2018 I think your best option will be buying a new handguard Link to comment Share on other sites More sharing options...
Guest Posted December 16, 2018 Share Posted December 16, 2018 I have a box full plastic & alloy rails, drop me a PM with your address, I’ll measure them and send you a few bud 👍🏻 Link to comment Share on other sites More sharing options...
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