Unless someone is basically giving it away, you're not going to save yourself much. Charging handles are in-stock everywhere, and you can find them all day for $20 or less plus tax and shipping if you're not looking for an ambi or something geared toward suppressor use.
Thanks buyobuyo. I was looking at purchasing one from the online AR discounts stores but I thought maybe there would be someone on this forum that had one (or several) collecting dust.
BKingsfirearms is where I have been ordering all my parts lately, great prices, free shipping over $250, no tax - their barrel and BCG specs are great (I've exchanged several email threads with them), handguard fitment has been great, they offer nitrided lower parts instead of standard phosphate - etc - just make sure you read the specs on the product description pages, for example they sell 6061 charging handles for $12 but 7075-T6 is $1 more - same with buffer tubes, they sell 6061 and 7075-T6 (I've bought 3 buffer tubes and spot on fit and finish for all)
$13 - flat rate shipping is probably $8 so throw a few more things in the cart for spares while you need it
Features: Standard AR15 Mil-Spec Charging Handle From from 7075‐T6 Black Anodize Platform - AR15 Proudly Made in the USA weight - 1.5oz PRODUCT SKU: BKF-FCH-556