Is there any value to colt marked 20rnd magazines?

About $13 if it's brand new.  Brand new pre-bans go for about $20 to ban states.

NHMTGs are the same thing for the same price.  

NHMTG/Okays are available from 44mag.com, Tombstone Tactical has Colts for the same price.  Are three of those brands are the same exact thing.

Best 20 round mags you can get.

I have about ten used colt mags from the late 70's/80's. So as far as used old ones. !?

I may just throw them up on the classifieds.

Put 'em out as pre-bans for $20 shipped each and see how they do.  

Which "Colt"  20's? There are five + different markings that all bring different $$$.

I'll
Look.  



What am I looking for !????

Floor plate, body markings an what is the follower made from.

Some info, prices are off. From here:
http://www.ar15.com/content/page.html?id=331

"20 Round Capacity Magazines:

Original Armalite "waffle-sided." Similar in design to the AR-10 magazine.
Gray. Super scarce. Pre-1963 production. $175 to $250 each.

Early Air Force contract 20 round. Circa 1963-1968. Earliest had bright alloy
followers, later manufacture had dull followers. Scarce. Marked "Colt Pt. Mfg.
Co. Inc." w/prancing pony and "CAL. .223" on floorplate. Usually $55+ each. Some have cartridge counter holes in the side. These sometimes come in tan VCI paper four packs or silver foil two packs. (Collectors are thrilled when they can get them in sealed original military contract wrappers.)

An Air Force armorer e-mailed me to say that he had seen at least four variations of the early Colt-marked 20-rd magazines, having the .223 marking on the base plate. These
are: no perforations (cartridge counter holes) in the sides, four holes in each side, five holes in each side, and six holes in each side. ANY of these are particularly rare and collectible.

Gun Show tip: As you walk around gun shows, look for used 20s and sort
through looking for shiny alloy followers. These are the early contract
magazines, and are worth a premium price. However, most dealers don't realize
the significance, and will sell you these magazines at the same price that
they sell the typical later vintage used 20s.

Army and late Air Force contract 20 round. Circa 1969 to 1971. Dull alloy
followers. Marked Colt Firearm Division" w/pony and "5.56 MM" on floorplate.
(These usually sell for $20 to $45 at gun shows.) I usually have these in stock.

Note: The general rule is that pre-1969 20 round Colt-made magazines are
marked ""CAL. .223" and that 1969 and later production 20s are marked "CAL.
5.56MM"

Army and late Air Force contract 20 round. Circa 1966 to 1971. Dull alloy
followers. Most marked Colt w/pony. A few are marked Simmonds or
Adventureline on floorplate. Usually $20 to $40 ea. (Actually these are more
scarce than Colt made 20s, but few collectors realize it, and oddly they
pay more for Colts!) I usually have these in stock. "

pm sent.