The following unicorns are available on Gunbroker for those of you with deep pockets. Sadly, I don’t have the necessary depth to compete.

First up is a Colt 901 CSASS prototype. Only a few of these exist in the U.S.

https://www.gunbroker.com/item/968075502

Next is the first and second serial numbers produced of the SP6920/M4 Carbine Sporter. Serials SP500,000 and SP500,001

https://www.gunbroker.com/item/968076726

https://www.gunbroker.com/item/968077059

And an original Colt USMC marked M45A1 CQBP model 1911.

https://www.gunbroker.com/item/968112151

Get on over there and make your bid!