Ed Brown
Rock Island Armory TAC Ultra MS Barrels
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Manufacturer
Rock Island Armory
Model & version
TAC Ultra MS
Mounting details
MIL-STD-1913 Picatinny
Parts listed
12 total
What the compatibility labels mean
How we knowHow we check compatibility
- Lab testedFit checked by Firearm Lab for the recorded setup.
- Documented fitmentSupported by manufacturer, partner, or reviewed community evidence.
- Interface matchMounting details match, but this exact model and part have not been confirmed to fit together.
Check your exact model and part before ordering. Fitment limits
Ed Brown1
Based on manufacturer information — Oct 2026. May require modification — see notes.
Jarvis, Inc.2
Jarvis 1911 Barrel — Commander 4.25" 10mm
Jarvis 1911 Barrel — Commander 4.25" 45 ACP
Kart Precision1
Gunsmith Fit Barrel
May require modification — see notes.
KKM Precision5
10MM Clark/Para Ramped
May require modification — see notes.
10MM Wilson/Nowlin Ramped
May require modification — see notes.
45ACP Clark/Para Ramped with .578×28 Suppressor Threads
May require modification — see notes.
45ACP Un-Ramped with .578×28 Suppressor Threads
May require modification — see notes.
45ACP Wilson/Nowlin Ramped with .578×28 Suppressor Threads
May require modification — see notes.
Nowlin2
Barrel, Gunsmith, Non-Ramped
Part no. SBPGMay require modification — see notes.
Barrel, Gunsmith, Ramped
Part no. RBPGMay require modification — see notes.
Oriskany Arms1
1911 Match Grade Barrel, 45 ACP, 4.25", Stainless Steel, Standard Ramp
May require modification — see notes.