UP FOR SALE IS A CUSTOM PALMETTO STATE ARMORY
LOWER RECEIVER +6.5 GRENDEL 12 INCH UPPER STAINLESS STEEL BARREL
 THIS IS A LEGAL AR PISTOL BUT SOLD AS COMPLETE KIT
COMES WITH :
FDE SBM4 SB TACTICAL PISTOL BRACE
WHICH YOU CAN NOW SHOULDER SINCE 04/17

FDE MAGPUL AR PISTOL GRIP
2 -6.5 MM GRENDEL MAGAZINES
REAR M54 METAL CARRYING HANDLE ADJ SIGHT
FRONT METAL FLIP UP ADJ SIGHT

6.5 Grendel vs. 6.8 SPC vs. .223 Rem. Cartridge Comparisons

Nominal Parameters 6.5 Grendel 6.8 Rem. SPC .223 Rem.
Case length (inches) 1.520 1.686 1.760
Maximum Cartridge
Length (inches) 2.260 2.260 2.260
Cartridge Head
Diameter (inch) .441 .422 .378
Maximum Average Pressure (psi) 52,000 55,000 55,000
Bullet Weight (grains) 120 120 62
Ballistic Coefficient .457 .400 .310
Muzzle velocity (fps) 2,500 2,400 3,000
Velocity at 500 yards (fps) 1,678 1,505 1,908
Muzzle Energy (ft-lb.) 1,666 1,535 1,239
Energy at 500 yards (ft-lb.) 750 604 502