WTT/WTB: M-16 Carrier for AR-15 or SP1 carrier

[SKYWLKR]

Want to trade an M-16 carrier (I have a Spikes, Model 1 and I think a Delton) for an AR-15 or a Colt Style SP1 carrier.

Bolt cavity must be chrome lined. Will pay extra for Nitrided or NP3 or other boutique coating.

 

[Crimson]

I have an older spikes bcg that is not laser engraved but it is an ar-15 bcg. Not sure on the lining I will have to check.

 

[Redleg2/9]

I have a new – factory tested only - DPMS Titanium Nitride bolt carrier group assembly that I purchased from Brownells, item # 231-000-178. I will trade it even for the Spikes if it is in excellent condition.