Silent Industries Advanced Feed Tube Spacer retroarms This can help conceal a

This can help conceal a longer inner barrel which adds in range and accuracy or be just be for a more tactical look

additionally

Aluminum alloy upper and lower receivers and barrel assembly

One piece magazine shell providing more durability

Silent Industries Advanced Feed Tube Spacer retroarms This can help conceal aLet us introduce you a small but important part for the Forged and New Billet series with the Advanced Feed Tube. The Hop Up in some cases needs extra support and thats what this spacer does. It prevents side to side wobble and aligns the feed tube hole with the Hop Up chamber hole for improved feeding. Due to the tolerances some MTWs need this some not but it is a nice addition to make sure everything is aligned. Why is it good? Perfect alignment