BudsGunShop.com - What is the twist rate on this particular model ?

Dorian, barrel twist is 1 in 9 with 6 grooves and lands and threaded 1/2 x 28.

1:9 twist see ******Action: Semi Auto
Caliber: .223 Rem / 5.56mm NATO
Capacity: 30+1
Finish: Hardcoat Black Anodize
Bolt Material: Carpenter 158 Steel
Receiver: M4A4 Type Flat Top Upper w/Handle
Receiver Material: 7075 T6 Aircraft Aluminum
Stock: 6-Position Telescoping Buttstock
Grip: A2 Black Plastic
Sights: Adjustable
Safety: Manual Lever with Indicator Markings
********Twist: 1:9
Barrel: 16 Heavy Chrome Lined w/A2 Suppressor
Overall Length: 36.125
Weight: 7.45 lb
License Requirement
FFL
Manufacturer
Windham Weaponry
Mfg. Part Number
R16A4T
UPC
848037000019
Caliber/Gauge
.223 / 5.56
Action
Semi Automatic
Barrel Length
16