Additional Service: A5/MR223 Barrel Extension Machining$9900 SKU: 416A5ASIT-1 Category: hide-from-search Product ID: 7725 Required to use standard 416 or MR556 barrels in an “indexing tab” style A5/MR223 upper receiver. Machining Choose an optionMachine BARREL to fit upperMachine UPPER to fit barrel Clear Additional Service: A5/MR223 Barrel Extension Machining quantity Add to cart Description Additional information Description Required to use standard 416 or MR556 barrels in an “indexing tab” style A5/MR223 upper receiver. Additional information Weight 16 oz Dimensions 8 × 23 × 3 in Machining Machine BARREL to fit upper, Machine UPPER to fit barrel Related products SALE HK MP5K RS Custom Build Complete 9mm From: $3,49900 Original price was: $3,49900.$3,19900Current price is: $3,19900. Out of stock SALEWAITLIST NOW HK UMP 10mm Conversion Kit Bolt and Barrel from: $69900$49900 Out of stock WAITLIST NOW HK UMP 40Cal Conversion Kit Bolt and Barrel from: $44900 Out of stock WAITLIST NOW HK PSG1 MSG90 Style/Clone Tripod $39900