The Guntec USA AR-15 Ultralight Series Complete Furniture Set features a 15" extended length handguard with the exception of model MPN:12MLK-SET-PURPLE, which includes a 12" handguard.
The Guntec USA AR-15 Ultralight Series Complete Furniture Set includes a handguard with an internal diameter of 1.34", ensure the gas block on your rifle would clear the handguard before purchasing. This kit also includes a 3 oz buffer. For 50 Beowulf, I would recommend a heavier buffer (4.6 oz.) in a carbine length tube.
Please reach out to Guntech directly as they do not make this information available.
Please reach out to the manufacturer for more information on your question.
Yes, this will fit onto the receiver for that firearm.
No, unfortunately it will not.
Yes, the barrel nut for this kit will need to be timed.