Toni Systems new Reduced barrel clamp, ga.12 (TST) For all you practical shotgun needs these clamps will secure you shotgun magazine tube for the result. MORE INFO: Material: Aluminum SKU: ASTC2 EAN: 8055060649395 COMPATIBILITY: Beretta A400 LITE - Beretta A400 Xtreme Unico - Beretta A391 Xtrema 2 - Beretta A400 Xtreme Plus