Stratus “Customizable” SR511 5.56mm 11.5″ Pistol


The Stratus SR511 Pistol

SKU: SR511 Category:


The Stratus SR511 pistol is our hard use pistol designed to be compact yet still have the right amount of dwell time to outperform its shorter counterparts. The SR511 is an Optics Ready Pistol that features our 11.5″ 1:7 twist, Nitride finished barrel with a carbine length gas system. That barrel is headspace to your choice of our Bolt Carrier Groups which are properly staked using grade 8 fasteners. The upper and lower receivers are hand selected to ensure the best fit for this pistol.

Barrel 11.5″, 5.56, 1:7, Carbine Length
Gas Block Low Profile, .750
Gas Tube Gas Tube QPQ Coated – Carbine length
Handguard SLR ION 10.7″ Lite MLOK or KM
Upper Receiver Stratus, 7075-T6 Forged Aluminum
Lower Receiver Stratus SR-15, 7075-T6 Forged Aluminum
Receiver Extension Tubes Pistol, 7075-T6 Aluminum
Buffer Heavy
Buffer Spring SprinCo Red


***Please include you FFL’s name and phone number in the “FFL Information” or the “Order Notes” section on the checkout page. If you miss this step or haven’t determined which FFL you intend to use yet that’s ok, you can email us that information afterwards at and we’ll take it from there.

SHIPPING RESTRICTIONS: This product must be shipped to a Federal Firearms Dealer inside the US. We do not ship to California, Connecticut, Massachusetts, Maryland, New Jersey, New York, or Washington DC.


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