The Odin Works Ragna Handguard has an internal diameter of 1.35".
The Odin Works Forend Ragna M-lok 17.5" Ar-15 handguard weighs 11.45oz with all hardware. The handguard itself is 8.8oz and hardware is 2.65oz.
No, this is specifically for the AR-15.
Yes, this should work with the Spikes Gen 2 Billet upper receiver.
No, this is specifically for the AR-15.
Unfortunately this is not compatible with the Ruger SR-556. It's going to be difficult to find one that will work, but you can email us at techsales@opticsplanet.com and we can help try to find something that might work.
No, it will not. The Bear Creek 6.5 Creedmoor is based on the AR-10 platform - the Ragna handguard is only compatible with the AR-15 platform.
The Ragna keymod variant was discontinued by Odin Works. It is only available in M-LOK.
No, it will not.
Per Odin Works "All .750 ODIN Works gas blocks fit inside", as long as the gas block is an Odin Works .750 gas block, it should work.