Slooowwwwwwww the fhuqk down and pay attention. Hint.
The issued CTR mags will HAPPILY house a 75 ELD Smooch,in issued guise. Read that again. Now one more time. Hint.
Further,AICS mags can be coerced to fit the CTR's magwell. Hint.
You are THERE...simply breathe deep and take the EASY win. Hint.
Fhuqking laughing!....................