- For use on most Model 37s
 - Tube must be seated in receiver to function properly, professional installation recommended
 - Capacity 4 + 1
 
Additional information
| Weight | 4.6 oz | 
|---|---|
| Dimensions | 11.75 × 1 × 1 in | 
| Gauge | 12 Gauge, 16 Gauge, 20 Gauge, 28 Gauge  | 
| Finish | Blued, Black Parkerized, Matte Blued, PermaGuard  | 
 





