Both pistols are ok. The Queen of Bling uses the SR1911 for both Main Match and a second for backup;
WBSHB Pg 18 "Shotgun barrels may have internal choke tubes installed provided they do not extend beyond the muzzle."
WBSHB Pg 19 "Front sights may be bead or simple post types.
- Mid-barrel sights are allowed and must be the same color as the front sight.
- Front sights may be blue, black, steel, ivory, faux ivory, brass, gold, pewter, copper, or silver."
No red sights allowed, either optical or stationary, for shotgun.