I'm not sure why but I had one guy pm me to see if I wanted to sell my handguard as he liked the first gen clamp better than the current version. 81 rails Quadboard Z'''', Electronic Protection (full height-55. I have the first gen SLR rail (3 yrs old?) and they made some changes to the clamp. RIS KEYMOD MLOCK HANDGUARDS WE-4168 GBBR handguard mounting screw set WE MP5 Handguard with Tactical Light Classic Army 7 Free Float Rail System For. 14 - (forchassisj 195 10MB Shugart HD w/cntrlr. AIM Sports 10 AR-15 Free Float Keymod Handguard - BLACK. The clamp style is almost idiot proof to install. UK Arms Airsoft XRU 3 M4 Handguard w/ 12.5-inch Rail - BLACK. I'm more confident with Noveske's implementation of their design than I would be with a chinese knock off. This is more just splitting hairs and both types should work. I will start by saying one of the screws was missing upon arrival, i called and brought it to DD attention, they fixed my issue in a matter of days. On the clamp on styles, they are more secure all around the barrel nut. There is also some slop, although minimal with the NSR, between the rail and the barrel nut. The DDM4 Rail’s ergonomic design allows operators to. This design results in the ergonomics and proven durability users demand while maintaining the lightweight characteristics they expect from Daniel Defense. The issue I have with the type of mount where you use screws to secure the rail to the barrel nut is that the holes for the screws have some play or slop so you need to make sure the rail is positioned correctly before tightening them all down. The Daniel Defense DDM4 Rail, found on many DDM4 firearm configurations, features an optimized one-piece, free-floating architecture. Looks like the pin is to prevent the barrel nut and rail from spining.

10 inch quad rail dd