Geissele Automatics Reliability Enhanced Bolt Carrier & Gas Key
The Reliability Enhanced Bolt Carrier is a 5.56mm full-mass, full-auto rated M16/M4 bolt carrier built to exceed the military specifications.
Machined with extremely tight tolerances for superb gas efficiency. The extended upper rails on the carrier also provide much greater stability and dramatically increase feeding reliability. The Carrier is coated with Nanoweapon for maximum corrosion and wear resistance.
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Nanoweapon is a family of coatings similar to DSL (Durable Solid Lubricant) that was developed by Picatinny Arsenal (US ARMY ARDEC) and is only available exclusively from Geissele Automatics. Our engineers worked for over 3 years with the research and development company that worked with Picatinny to develop the coating in order to fine tune it into what it is today, making it the pinnacle of coatings for firearm components. No other coating on the market can provide the same level of corrosion, wear, and abrasion resistance as Nanoweapon. The coating is applied at low temperatures so it does not affect the metallurgy of the part, and has a surface hardness equivalent of 82HRC. At that hardness, it is harder than sand, easily rejecting carbon and making cleaning a breeze, on top of allowing the firearm to operate normally with less lubrication.
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Jason P. (verified owner) –
You just keep those ramen noodles coming with my orders please. Chicken is good, but chili is the best. Lol.
As for the geissele reliability enhanced bolt carrier (just the carrier),… I gauge all the dimensions of all my bolt carriers. Check out SOTAR gauging videos on youtube (not my channel),… this is the type of gauging I do. The geissele carrier passed on all spec measurements, which is more rare than you would think. The only carriers I typically do well on all specs are BCM and LMT.
The reason I chose this carrier was for the extended rails. I thought that this might contribute to less wobble and a tighter fit in the upper receiver for a mk12 precision build of mine. I was right. This carrier would serve you well for your precision builds because of the tighter rail tolerances to your upper receiver, contributing to a more consistent bolt lock up.
Matt (verified owner) –
Service and shipping from rooftop was 10/10 as always. Gas key was staked well, all dimensions were within spec, amazing coating and chrome lined. I went with what I know in the bolt with a BCM and it’s been flawless for the first 500 rounds and I dont expect any issues moving forwards. Will be my default moving forwards for builds. Thank you Sol!