Gallery

The Osprey Defense Gas Piston Conversion System for the M4 / AR15 / M16 rifle.

18 Photos

Step by step installation photos of the Osprey Defense OPS-416 on a standard Colt M4 rifle. Entire process takes only a few minutes. First time installations typically take 6-7 minutes, once you've done it, you'll probably be able to accomplish everything in about 4-5 minutes or so.

87 Photos

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Testimonials

After conducting this field test of the Osprey Defense OPS-416 conversion kit, I find that it truly does meet up to the claims made by the manufacturer. The weapon runs amazingly cleaner, the receiver temperatures are much cooler, and as an added bonus, lubricants remain on the operating metal parts which will in the long run, allow the weapon to have a longer usable lifespan.

Sgt. RM