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Not with an existing upper receiver, no. These go specifically with the Aero Precision "M4E1 Enhanced" upper receivers that have a different non-standard barrel nut and attachment system.

Hi Micah and welcome. Unfortunately, no Sir. This Handguard is a free float design that is compatible with Aero M4E1 upper receivers with the integrated handguard mount. The Blackrain Ordnance AR 15 rifle does not have the required barrel nut. Cheers and stay safe!