Product Description
Features:
- 8? Medium Taper
 - 1:10 Twist
 - 4140 Chrome Moly
 - Salt Bath Nitride Finish inside and out
 - 9×19 NATO Chamber
 - Threaded 1/2-28
 - Radial Delayed Blowback Bolt (Patent Pending)
 - Requires enlarged ejection port for reliable operation.
 - Weight: 1.7lbs