Ar 15/m16 5.56 Exo Treated Nickel Boron Bolt Assembly Ar 15 Bolt by Failzero Shooting Supplies in US
Rifle Bolts by Failzero in US
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Product tech details: Drop in bolt has a self lubricating surface that eliminates the need to apply oil or grease that can attract dirt dust unburned powder and carbon and lead to cycling failures. Proprietary exo treatment produces an exceptionally hard surface that's 40% more wear resistant than chrome plating with an ultra low friction coefficient. Surface is actually harder than the substrate underneath and will not peel flake gall or rub off. Exo treated nickel boron finish bolt/carrier groups have been tested to function reliably without additional lubrication up to 50 000 rounds. Reduced friction also means less heat generated by metal on metal contact so the gun runs cooler and parts last lo mfg failzero specs heat hardened carbon steel exo treated nickel boron finish. Fits mil spec ar 15 upper receiver. Ar 15/m16 5.56 Exo Treated Nickel Boron Bolt Assembly Ar 15 Bolt, high quality rifle bolts by Failzero. MPN: EXOBOLTASS01. Shooting Supplies SKU: 100004475 10837.
 Indicative Price: USD 109.99
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Ar 15 Exo Barrel Extension Steel Nickel by Failzero Shooting Supplies in US
USD 26.99
(Indicative price - actual current price possibly lower)
Failzero US Shooting Supplies
Product tech details: M4 type barrel extension has a self lubricating exo treated nickel boron finish that aids in smooth consistent feeding and helps prevent hang ups. High tech coating lasts the life of the weapon and won't rub off flake off or gall. Helps dissipate heat for cooler operation too. Precision machined from 8620 steel to usgi specifications with integral m4 type feed ramps and predrilled locator pin hole. Mfg failzero specs 8620 carbon steel exo treated nickel boron finish. .998" o.D. 1.168" shoulder o.D. .8125" 16unf thread. Barrel locator pin required available separately. Ar 15 Exo Barrel Extension Steel Nickel, high quality rifle barrel extension parts by Failzero. MPN: EXOBRLEXT01. Shooting Supplies SKU: 100005443 10926.
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