LMT M203 40mm Barrel, 9″
This LMT 40mm barrel assembly is one of the mainstays and go-to’s of the M203 family.
This barrel is designed for use with L2B1 rail-mount or classic LMP300E under-barrel receivers.
All NFA rules apply; must have ATF approval for your M203 receiver as a Destructive Device prior to installing this barrel.
Does not include receiver or sight.


Zach (verified owner) –
I absolutely love this company! I’ve done a lot of business with them and have never had a problem receiving my orders. I’ll definitely continue to be a loyal customer.
Their service is top-notch, and they really go above and beyond. My most recent package even came with a pack of ramen noodles and a note that said, “I know this addition is expensive, so enjoy this free meal on us”. It’s small gestures like this that make doing business with them a pleasure.
Kyle Y. (verified owner) –
Always wanted an M203 ever since my days in the Army and now I finally found a place that has them available and plentiful. Loved the fast shipping and definitely will order from here again.
GT (verified owner) –
Actual barrel was perfect and factory new, fast shipping and great customer service.
Michael C. (verified owner) –
Just the bloop I was looking for. Showed up quickly. Thank you.
Craig (verified owner) –
Great product. Can’t wait to use it. Come on ATF, hurry up and process my Form 1.