Items Available For Purchase Today Object reference not set to an instance of an object. See All AR 57 upper 5.7x28 chambered For Sale from: Black Cache Armament | Positive feedback: 100% View | Verified Seller | 7 Completed Sales View Sellers Items AR 57 upper 5.7x28 chambered For Sale from: Black Cache Armament | Positive feedback: 100% View | Verified Seller | 7 Completed Sales View Sellers Items Black Cache Armament Seller Since: Oct. 2017 Identity Verified ( Plano, TX ) This seller is NOT an FFL City: The Colony State: TX SOLD - $849.99 2% Credit Card Processing Fee will apply. Shipping: $16.25 Accepted Payment Methods: Returns: No Returns This Seller Accepts Instant Online Payments Description: AR 57 upper 5.7x28 top loading magazine LAYAWAY AVAILABLE !!!!!!!! OBO JUST MSSG US !!!!!!! chambered in 5.7x28mm Ambidextrous. Top loading magazine ejects brass out the bottom of mag well. Easy to collect brass if you gut a regular AR/M16 mag for brass collection ?VERY LIMITED QTY. IN STOCK!!!!! Cannot ship to CA Condition: New In Box Item #: 925348494 Location: TX Trades Accepted: Yes. Share: Shipping Notes: Cannot ship to CA Black Cache Armament Items You've Viewed Recently AR 57 upper 5.7x28 chambered $849.99 SELLER: Black Cache Armament Add To Cart