To put in on contex, I have the opportunity to pick on up with the following description for $1599.99:
Caliber: .308 Win. (7.62x51mm)
Operating System: Roller-delayed blowback
Action: Semi-automatic (Host ready for NFA-registered auto sear pack)
Carrier: Heat treated, full-auto bolt carrier
Overall Finish: Parkerized
Barrel: 16" Stress relieved, tapered contour, threaded 5/8" x 24, twist 1 in 10" RH
Optic Mount: 7.5" Steel picatinny rail
Trigger Pull: 9-10 lbs.
Specifics of This Rifle:
The above is all true of the stock GIRK model PTR-91, but this ones got some extras.
Timney - HK MP5 Two stage trigger (Installed)
2# Single Stage/ 2# Second Stage
Aluminum MLOK Handguard (Installed)
Midwest Industries - Blast Can (installed)
Includes 3-Prong Flash Hider
Includes OEM PTR Trigger Pack
Includes OEM Handguard
(5) 20-rd Mags
Includes Owner's Manual