I have for sale 2 Superlative Arms AGB w/Bleed Off Feature.  Both were used for one range trip with a very low round count. Basically new.  I switched to JP AGB so these need a new home.  Both are sized .750. One is in original packaging with extra set screws, roll pin and adjustment tool.  The other only comes with an adjustment tool.  $70.00 each. Price is firm. No shipping. FTF transaction.  Superlative Arms provides a Lifetime Warranty for it's adjustable gas blocks.