Well fellas I got some barrels that are just hangin out collecting dust. So I am putting them up for grabs! Here is what I have:
Ok so shipping is not included unless we discuss it.
1- BOA twist lock right or left feed measures 8 3/8" and it also has the nubbin! $25 obo.
Pending to Hammercraft 
Next up is a J&J Stainless barrel that measures 10" right or left feed never has been used, it too has nubbin. Oh yeah this is the barrel that was so accurate in its time because of the rifling that it has! $35 obo.
Pending to Undertow 
Next is a 10" Titainium Longbow barrel with a blue tip. This barrel is BNIB. This thing cost me $100 it is also right or left feed and has the plastic nubbin that they came with. $65 obo.
Next up is a long power feed adaptor for using a Warpfeed and you can feed from the bottom of the powerfeed on your Mag.
Pending Walker. 
Next is a set of wrap style grips for your 90* vert. frames. $15 obo.
Next up is a BNIP set of Fry Mark grip panels also for your 90* vert. frames. $25 obo.
Last but not least is a BNIP Cocker thread adaptor from Doc's Machine.
Pending Walker 
I have a few other things to list but they are not Mag specific so be sure to check the B/S/T that are not Mag specific. Thanks