Brand new Titanium SLR .750 Sentry 7 Adjustable Gas Block. I bought this last week and ended up going with the Melonite one instead. It has never been used. Link is here: http://slrrifleworks.com/index.php?route=product/product&product_id=496
Paid $188.99 shipped from SLR.
First $165 Shipped takes it. Paypal plus fee or gift. Insurance is on buyers dime if desired. SOLD
Thanks