Replacing Grooved Handguard Mark 4 "T"

[mrclark303]

Just to add ..

Assuming a new old stock replacement is being fitted, before you colour and oil up the replacement,check fit it, you might find you need to remove a very small amount of material from the rebate, to allow it to fit comfortably under the ring.

Edit: Correction, remove a tiny amount, equally from the bottom if needed.