This UTG Pro AR15 Carbine Length Super Slim M-LOK Drop-in Rail is designed to replace carbine length handguards that use a delta ring and handguard cap. We do carry models that will extend past the front sight post in order to cover the barrel and allow for more rail space. You can find the UTG Pro model by using the link below:
https://www.opticsplanet.com/leapers-utg-pro-ar15-super-slim-m-lok-15-drop-in-car-length-rail.html