FRT-MR3 Forced Reset Trigger for the HK MR223 & HK MR556 is a trigger group for AR-pattern rifles, listed with what it is and what it fits in plain terms.

What is listed: 1 x FRT-MR3 Trigger; 2 x Anti-Walk Pins; 4 x Anti-Walk Pin Screws; 1 x A1 Selector Drum; 1 x A4 Selector Drum; 2 x Selector Lever Roll Pins.

Oregon Arms & Ammunition covers Portland, the Cascades and the whole coast. 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.

Oregon Arms & Ammunition added this item to the shop as a new arrival. Details come from the maker's published listing, in our own words. If you need a measurement, material or compatibility detail that is not shown, send us the question before ordering.

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.