Drop-In Or Oversized, 4340 Or Stainless
Installs in 1911 Autos with little to no fitting. Drop-In
model fits snug in most slides, accepts standard barrels with no
reaming. Oversize model has smaller I.D. that can be
fitted to exactly match the barrel.
1911, Issue:09, Page:007
Big Book Catalog, Issue:66, Page:097
Sinclair, Issue:1A, Page:008
SPECS: .701" (17.8mm) O.D. 4340 CM or 416 Stainless steel.
Drop-In: .580" (14.7mm) I.D. Oversize: .575"