Poor fit leads to excess wobble - Guntec USA AR-15 Carbine Length M-LOK Handguard w/Monolithic Top Rail

I gave this rail 3 starts because it does drop in without any problems, and it does have mlok slots on it, and it's also aluminum. I only gave it 3 stars though because once it's all screwed together and on the rifle it flexes up and down about a quarter to a half of an inch. The side to side movement isn't that bad, but as soon as you assume a firing grip you feel the rail flex upward until it either hits the barrel or the top of the handguard cap, but I'm not sure which one. You could most likely use small pieces of electrical tape on the front of the rail where each half slips under the handguard cap to mitigate that slop in the rail, but I didn't try that. I got a Leapers UTG drop in rail instead because it is designed so that you install it into the delta ring first, then clamshell the front of the rail around the handguard cap. Then it's screwed together. The only other thing I noticed about the guntecUSA rail is that the mlok slots are kinda sharp and it makes it a little uncomfortable if your handling it. I don't think I would recommend this particular rail, but I do own one of their ultra slim free float rails and it's quite nice and definitely solid.