The 223 Wylde chamber was developed to reliably fire both rounds with the highest possible accuracy (556 NATO ammo can safely be used in 223 Wylde barrels). The 223 Wylde chamber was desiged to have tighter tolerences and be slighty more accurate than the 556 NATO chamber. Both rounds maintain supersonic speed beyond 500 yards and maintains the capability of penetrating 0.135" steel at 500 yards.
- AR15parts will customize (to your specificaions in the drop down menu) your AR15 upper with the Rail Type (M-LOK or KEYMOD), a Magazine or two, one of our High Quality Bolt Carrier Groups, and your choice of 5 different Charging Handles.
ReviewsDaniel FarnsworthIts a great upper smooth cycling and yes to use. Well madeDaniel Farnsworth
UpperIts a great upper smooth cycling and yes to use. Well madeJohn Franklin
Happy customer!Saw these were back in stock and placed my order. Got order shipped confirmation in two days. Received my order right on time!michael mason
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DetailsCurrent Stock: 270SKU: UA22W18SS08HC28M_15ML00_A2UPC:Availability: Usually Ships in 24 HoursOld SKU: 18223SS1x8ML1X8RL