.223 and 300blk

#1 · February 13, 2016, 5:27 pm

Is .223 and 300blk the same conversion kit on the 550b?

#2 · February 14, 2016, 3:05 am

.223 Remington conversion kit # 20128
.300 AAC Blackout/Whisper # 20236

Same shell plate and locator buttons. So if you have the 223 all you will need is the funnel for the 300 BLK. Someone can pipe in on the number of the powder funnel.

#3 · February 14, 2016, 5:24 am

The AK 7.62 X 39 and 300 whisper uses the 13015, so I would assume the same for 300 black out.