That is a Mountain Tac' unit,made to drop in a CTR inlet,which means it's a breeze to open up on a T3 Sporter. No thang. Hint.
Now as boolits go,the RMR 75's are junk,as per a halfa dozen of my Custom spouts. PN 3-groover was the "best" on the initial outing. Hint.
The RMR 69 is MUCH better. My Custom Krieger 22BR here and I tend to disfavor Krieger on the average. Hint.
As compared to the 69 SMK here. Hint.
The Canuckians be Re-Googlin' tonight. Hint.
Fhuqking LAUGHING!...........