Large PIN lower or SMALL PIN lower?? What?!?!

[WilliamAnderson]

Um, I have a spike's tactical OLL and what kind of pin size do I have?

[pwall]

HUH? thats a new one to me...

[J_Rock]

Large pin refers to Colt lowers. Spikes and every other lower mfg uses small pin

[REDHORSE]

Colt Sporters are about the only ARs out there with the large pin lowers.

[WilliamAnderson]

So, I will be fine then. THANKS!

[Mississippi]

small on all non colts as stated above. I had the same question when I got started too.

[Cyclepath]

small pin for Spike's. Good luck on your build.

[stockplayer]

10-4 on the small pins