Stem Interface Dimensions

Graflex Stem Dimensions

Stem PN Size
Insertion Depth

Muzzle Break Clearance
(Length)
C
Adapter Interface
(Interior)
D
Adapter Interface
(Exterior)
E
Muzzle Break Clearance
(Dia.)
S-1556 5.56 1.432 2.377 3.452 0.357 -
S-1000ISR 7.62 2.194 6.190 3.479 4.905 0.447
S-1000-8 7.62 1.211 2.539 3.214 0.536 0.450
S-1000OTK 7.62 1.174 5.704 6.452 0.426 0.444
S-1000E 7.62 1.211 5.299 3.214 3.376 0.455
S-1000 7.62 1.211 3.846 3.214 1.843 0.450
S-S001 NA - - 1.854 0.861 0.450


Adapter Interface Dimensions

Graflex Adapter Dimensions

Adapter PN Size
Overall Length

Lower Shaft Diameter

Insertion Depth

Muzzle Break Clearance (Length)

Tapered Section Max OD     
F
Knurled Section (Length)
G
Muzzle Break Clearance (Dia.)
1-1556 5.56 6.816 0.216 1.540 5.276 - 2.190 0.610
1-1006.3 12.7 7.682 0.400 2.914 4.768 - 2.190 0.610
1-1006L 12.7 11.200 0.400 5.573 5.627 - 2.190 0.610
1-S006 12.7 9.450 0.400 3.823 5.627 - 2.190 0.610
KB-1006 12.7 13.132 0.400 5.312 7.820 - 2.190 0.610
1-1006ISR 12.7 12.730 0.400 5.630 7.100 - 2.170 0.610
1-1145 14.5 11.004 0.391 6.068 4.936 - 2.190 0.610
1-1020 20 19.330 0.700 8.865 10.465 - 4.528 1.063
1-1002 25 19.330 0.787 9.417 9.913 - 4.528 1.063
1-1007 30 20.500 0.887 8.667 11.833 1.244 4.528 1.000
1-1009 40 16.305 1.000 7.396 8.909 1.700 4.528 1.000

 

Carbide Stems and Adapters - US Patent # 8,510,981