Specification AgeRangeDescription : Adult Brand : Rap4 BulletPoint : ★ NOT suitable for big head!!!!! Internal width: 6.69" (17cm); Internal length: 8.46" (21.5cm).Fits for head circumference about 59cm (23 inch)or below,Please check the size image carefully and measure your head circumference before make an order//***Warning: This item is for adult only BulletPoint1 : Clamping Feedneck - No Holes BulletPoint2 : Fits 07 classic line Xtra Sonix and Victor, X-tra, TLX, Pilot, Pilot ACS, Electra ACS 05, Rodeo, Sonix, Fenix, Fenix ACS, Primal, Nexion and Clones. BulletPoint3 : Use with any Hopper - Halo B, Viewloader, etc. BulletPoint4 : Stronger than Stock Feed Neck - Made out of Aircraft Grade Aluminium. BulletPoint5 : The adjustable clamping arm locks the hopper into place and will prevent it from falling out or rotating. Color : black Department : unisex-adult ExternallyAssignedProductIdentifier : 7797255640114 ExternallyAssignedProductIdentifier1 : 0844596036735 ExternallyAssignedProductIdentifier2 : 844596036735 ImportDesignation : Imported IncludedComponents : helmet ItemDisplayWeight : 0.17 pounds ItemName : US Army Alpha Black Offset Clamp Style Feed Neck - paintball feed neck ItemPackageDimensions_Height : 5.334 centimeters ItemPackageDimensions_Length : 7.112 centimeters ItemPackageDimensions_Width : 12.446 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : paintball-feed-necks Manufacturer : GFSP Outdoor Sports Material : Aluminum ModelName : fast PJ helmet ModelNumber : 0697694050529 PartNumber : rap4-usarmy-fdnck ProductDescription : Rap4 Paintball US Army Alpha Black Offset Clamp Style FeedneckThe Tippmann US Army Alpha Black Offset Clamp Style Feed Neck allows you to quickly remove and install your hopper without using any tools. The Tippmann US Army Alpha Black Offset Clamp Style Feed Neck let you add attachment of the scope, mount and carry handle without using any offset mount or adapters. The best feature of the Tippmann US Army Alpha Black Offset Clamp Style Feed Neck is it is made out of 100% metal - this will be the last hopper adapter you need to purchase - you will never break your feed neck again. Requires factory hook from the factory hopper adapter. ProductSiteLaunchDate : 2010-12-18T19:12:21.571Z RecommendedUsesForProduct : airsoft , CS outdoot sporting activities Size : One Size SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TargetAudience : Unisex-Adults UnspscCode : 49000000 WarrantyDescription : no