Lonex Enhanced Hop-up Unit for M4/M16

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This Lonex M16/M4 hop-up unit (along with the included parts) is a solid high-quality product with a very nice finish. The hop-up wheel is easy to turn, which makes precise adjustments possible. It was a perfect fit in my CA M15A4 Sportline Rifle, and paired with a Lonex nub and PDI W-Hold rubber, it made my groupings a bit tighter over the stock plastic CA hop-up unit.

Highly recommended.
Date Added: 02/13/2013 by Danh Tran