New, in the sealed Factory Package; Bushmaster Magazines made in Ilion, NY for the .450 Bushmaster Round.
Five Shot, Blackened Stainless Steel, Part Number F1003118
They are not stamped with anything caliber specific, and if you remove the Floorplate there is a regular 5.56 follower in there as a spacer. (the ones I've inspected) While I did not function test these, .458socom and .50 Beowulf fit just fine, only holds (4) round. 6.5 Grendel and 6.8 are too small for the feed lips to retain them.
I have 50 to sell
$20. $18. each + USPS.
I can pack (8) into the Small Flat Rate Envelope and if you buy (8) I'll cover the Shipping (CONUS)
PP, MO, or check from well established members with proper feedback.
Hit the e-mail and put Magazine in the subject for best results. Attached File Attached File4/29/21...Edited to drop the price from $20. each to $18. each