Does the job, but the mag well fit (in my AP m4E1 and a S&W M&P Sport II) wasn't nearly as solid as a similar block from another supplier, and subsequently this one is now my spare. Shipment took 10 days to get from Chicago to the Philly region.
The handguard is very nice and light. However, the aluminum barrel locknut is a joke. The aluminum teeth of the locknut will strip when tighten to the barrel. Please select the steel locknut when purchase the handguard which will increase the cost..