Caliber: 45 ACP, 9mm. Capacity: 8-round magazine. Barrel: 3.6”. Weight: 27 oz. Features: Compact variation of SR1911 Series. Black anodized aluminum or matte stainless frame, stainless slide, skeletonized trigger, Novak 3-dot Night Sights, G10 deluxe checkered G10 grips. Add 30% for Night Watchman or Engraved Street Editions.