Here is FRT-20 ALB Adjustable Locking Bar, a part many owners buy to tune or repair an AR-pattern rifle.

What is listed: 3 adjustment shims (2 installed and 1 spare); 1/16 hex key for adjustments.

S00 Tactical Supply covers all states where the item is legal to ship. Parts ship to your door where legal; check your state and local law before you order. We confirm price and availability at checkout, before payment.

Fitment is the most common reason a part is returned. Check the platform in the title, compare it with the lower receiver and fire-control group you own, and message us if you are unsure which version you need.

New at S00 Tactical Supply: this listing was added recently and is available to order now. We describe only what the maker publishes about the item, so no performance claims are made here. Read the title carefully and compare it with your own setup.

Questions about fit? Match the title to your rifle and trigger type, and ask before you order if anything is unclear. Listed as a new arrival and in stock.