This is a genuine factory Colt set of three bolt gas rings designed for M16, M4, and AR-15 type rifles. Manufactured to mil-spec standards, these gas rings provide a proper seal between the bolt and carrier for reliable gas system function and consistent cycling.
Compatible with standard AR-15/M4 bolt assemblies, this set of three rings is an authentic Colt replacement part for maintaining optimal performance. Ideal for routine maintenance, rebuilds, or ensuring factory-spec gas sealing on mil-spec platforms.
- Previous Part Numbers:
- SP61540
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Reviews
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Colt dealer
Glad I can count on AU for great prices on Colt Mfg parts, and free shipping
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Worked!
Fast shipping, these worked for me.
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Gas rings
They are good to go! Great parts to have on standby.
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AR15 Gas Rings
Excellent! Easy to install and no problems! Quick shipping. Will buy from again.
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Quality product delivered on time
These gas rings appear to be good quality and will be put in the spare parts bin!
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Bolt gas rings
Love buying from ArmsUnlimited!!! Super fast shipping.
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Colt bcg gas rings
As always AU had the best price, why buy a different brand when you know these are Colt and they will be good quality and function properly.
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Spares to have on hand just in case
Bought 3 sets of gas rings to have as spares. Peace of mind purchase.
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Great rings
They are gas rings, they function well and fit well. It’s kind of like reviewing screws in a deck-they are there and do their job and unless they are crap they aren’t noticed. These aren’t crap. You will happily forget about them and enjoy your rifle.