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Inventory Status

This page tracks the availability of the AR platform Barrels, Upper Receivers and Lower Receivers that we stock.

IMPORTANT! Statuses are updated every day, but the below are not guaranteed to be correct at the time of your order, as an item's status may change before we are able to update. Further, the "ETAs" below are only estimates, and not guarantees for when we expect to take delivery of new inventory. Please consider these factors before placing an order.

 

BARRELS                                                    

NOTE: The below availabilities are for bare stainless barrels only, and do not include custom finished (coated or bead-blasted) barrels. In stock barrels (together with any additional parts ordered) usually ship within 5 - 10 business days from the date of purchase. We only keep a limited number of custom finished barrels on hand, so shipping on your order may be delayed if we have to send a barrel out for finishing.  Custom coating / bead-blasting and gas block pinning may delay shipping by a few days. For additional specs on the barrels listed below, please click HERE.

 

.223 WYLDE

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IN STOCK

16” Recon profile, threaded muzzle, 416R stainless steel. Chambered to handle .223 Remington and 5.56 NATO ammo. 6-groove, 1:7” twist rifling, with 1/2-28 muzzle thread. Mid length gas. Barrel extension has M4 feed ramps. $175 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

Ops-Inc 14th and 15th Model brake and collar compatible!

  

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IN STOCK

16” SPR profile, threaded muzzle, 416R stainless steel. Chambered to handle .223 Remington and 5.56 NATO ammo. 6-groove, 1:7” twist rifling, with 1/2-28 muzzle thread. Mid length gas. Barrel extension has M4 feed ramps. $200 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

Ops-Inc 12th Model brake and collar compatible!

 

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IN STOCK

18” Recon profile, threaded muzzle, 416R stainless steel. Chambered to handle .223 Remington and 5.56 NATO ammo. 6-groove, 1:7” twist rifling, with 1/2-28 muzzle thread. Mid length gas. Barrel extension has M4 feed ramps. $175 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

Ops-Inc 14th and 15th Model brake and collar compatible!

 

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IN STOCK

18” SPR profile, threaded muzzle, 416R stainless steel. Chambered to handle .223 Remington and 5.56 NATO ammo. 6-groove, 1:7” twist rifling, with 1/2-28 muzzle thread. Mid length gas. Barrel extension has M4 feed ramps. $200 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

Ops-Inc 12th Model brake and collar compatible!

 

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IN STOCK

18” FULCRUM profile, threaded muzzle, 416R stainless steel. Fluted and stress relieved. Chambered to handle .223 Remington and 5.56 NATO ammo. 6-groove, 1:7” twist rifling. Mid length gas. BAT Machine barrel extension has M4 feed ramps. Requires the use of a Bison Armory proprietary gas block. $350 with standard Elite Iron gas bock, $420 with SLR Rifleworks adjustable gas block. Shop for this barrel HERE. Build it into an Upper Assembly HERE.

 

6.8 SPC 

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IN STOCK

LIMITED SUPPLY - 16” Recon profile, threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling and a 5/8-24 muzzle thread. Mid length gas system. A lighter barrel than our SPR. Barrel extension has M4 feed ramps. $200 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

16" SPR profile, Match Grade (Shilen / White Oak), threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling and a 5/8-24 muzzle thread. Mid length gas system. A heavier barrel than our Recon. Barrel extension has M4 feed ramps. A true match grade barrel turned by White Oak from a Shilen blank. $325 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

18” Recon profile, threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling and a 5/8-24 muzzle thread. Mid length gas system. A lighter barrel than our SPR. Barrel extension has M4 feed ramps. $200 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

18” SPR profile, threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling and a 5/8-24 muzzle thread. Mid length gas system. A heavier barrel than our Recon. Barrel extension has M4 feed ramps. A dummy gas block journal at the rifle position allows for use with a SPR Mk12 Mod 0/1 clone. $200 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

18” SPR profile, target crown muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling. Mid length gas system. A heavier barrel than our Recon. Barrel extension has M4 feed ramps. A dummy gas block journal at the rifle position allows for use with a SPR Mk12 Mod 0/1 clone. $200 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

18" SPR profile, Match Grade (Shilen / White Oak), threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling and a 5/8-24 muzzle thread. Mid length gas system. A heavier barrel than our Recon. Barrel extension has M4 feed ramps. A true match grade barrel turned by White Oak from a Shilen blank. $325 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

18" FULCRUM profile, threaded muzzle, 416R stainless steel. Fluted and stress relieved. 4-groove, 1:11” twist rifling. Mid length gas. Standard barrel extension has M4 feed ramps. Requires the use of a Bison Armory proprietary gas block. $330 with standard Elite Iron gas bock, $400 with SLR Rifleworks adjustable gas block. Shop for this barrel 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling and a 5/8-24 muzzle thread. Mid length gas system. Shop for this barrel HERE. Build it into an Upper Assembly HERE.

 

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IN STOCK

20” SPR Fluted profile, threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling and a 5/8-24 muzzle thread. Intermediate length gas system (must be used with a low profile gas block under a free floated forearm). Fluted to save weight and improve cooling. Barrel extension has M4 feed ramps. $250 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

20” SPR Fluted profile, target crown muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling. Intermediate length gas system (must be used with a low profile gas block under a free floated forearm). Fluted to save weight and improve cooling. Barrel extension has M4 feed ramps. $250 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

22” Heavy Fluted profile, threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling and a 5/8-24 muzzle thread. Rifle length gas system (requires 0.875” diameter gas block – journal is 1.1” long). Fluted to save weight and improve cooling. BAT Machine barrel extension has M4 feed ramps. $300 - Shop for this barrel HERE

 

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IN STOCK

22” Heavy Fluted profile, target crown muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:11” twist rifling. Rifle length gas system (requires 0.875” diameter gas block – journal is 1.1” long). Fluted to save weight and improve cooling. BAT Machine barrel extension has M4 feed ramps. $300 - Shop for this barrel HERE

 

6.8 BSP (Subsonic)

 

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IN STOCK

8.5” Pistol profile, threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:7” twist rifling and a 5/8-24 muzzle thread. Pistol length gas system. Barrel extension has M4 feed ramps. $150 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

11.5” Recon profile, threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:7” twist rifling and a 5/8-24 muzzle thread. Carbine length gas system. Barrel extension has M4 feed ramps. This barrel cycles (with or without a silencer) and shoots both our 200 grain subsonic ammo and standard 6.8 ammo perfectly. $150 - Shop for this barrel HERE or build it into an Upper Assembly HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

16” Recon profile, threaded muzzle, 416R stainless steel. SPC II chamber, with 4-groove, 1:7” twist rifling and a 5/8-24 muzzle thread. Carbine length gas system. Barrel extension has M4 feed ramps. This barrel cycles (with or without a silencer) and shoots both our 200 grain subsonic ammo and standard 6.8 ammo perfectly. $200 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

.300 BLACKOUT

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IN STOCK

8.5” Pistol profile, threaded muzzle, 416R stainless steel. 6-groove, 1:7" twist rifling. Chambered to handle .300 Blackout ammo. Pistol length gas. Barrel extension has M4 feed ramps. $150 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

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IN STOCK

10.5” SBR/Pistol profile, threaded muzzle, 416R stainless steel. 6-groove, 1:7" twist rifling. Chambered to handle .300 Blackout ammo. Pistol length gas. Barrel extension has M4 feed ramps. $175 - Shop for this barrel HERE or build it into an Upper Assembly HERE!.

 

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IN STOCK

16” CQR (Close Quarters Recon) profile, threaded muzzle, 416R stainless steel. 6-groove, 1:7" twist rifling. Chambered to handle .300 Blackout ammo. Pistol length gas. Barrel extension has M4 feed ramps. $200 - Shop for this barrel HERE or build it into an Upper Assembly HERE.

 

 308 WINCHESTER

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IN STOCK

18" FULCRUM profile, threaded muzzle, 416R stainless steel. Fluted and stress relieved. 6-groove, 1:10” twist rifling. Intermediate length gas. BAT Machine barrel extension has M4 feed ramps. Requires the use of a Bison Armory proprietary gas block. $360 with standard Elite Iron gas bock, $430 with SLR Rifleworks adjustable gas block. Shop for this barrel. Shop for this barrel HERE.

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UPPER RECEIVERS                                    

NOTE: Upper receivers are sold two ways: (1) as part of an upper assembly HERE or (2) as a part option with the purchase of a lower receiver HERE. Upper receivers are not sold as stand-alone parts at this time. The below availabitilities only cover the individual upper receiver parts specified and do not apply to any other parts you may wish to order for your upper assembly.

 

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IN STOCK

BISON Forged aluminum upper receiver. Compatible with any mil-spec forged lower receiver on the market. Hard-coat anodized, with the Bison Armory logo laser etched below the top rail on the (shooter's) left side. Includes ejection port cover and forward assist. Build an Upper Assembly HERE.

 

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SOLD OUT

MEGA Billet aluminum upper receiver. Perfectly matched to Mega's billet lower receivers. Hard-coat anodized. Includes ejection port cover and forward assist. Build an Upper Assembly HERE.

 

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IN STOCK

MEGA Billet Side Charge aluminum upper receiver. Perfectly matched to Mega's billet lower receivers. Hard-coat anodized. Requires the use of a side charge bolt carrier. Build an Upper Assembly HERE.


 

LOWER RECEIVERS                                    

NOTE: Lower receivers are sold three ways: (1) stripped as individual parts, (2) together with parts for you to assemble or (3) as part of a complete lower that we build for you. The below availabilities only cover the individual lower receiver parts specified and do not apply to any other parts you may wish to order with your lower.

 

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IN STOCK

BISON Forged aluminum lower receiver. Compatible with any mil-spec forged upper receiver on the market. Hard-coat anodized, with the Bison Armory logo fully engraved on the (shooter's) left side. Shop for this Lower HERE.

 

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IN STOCK

LIMITED SUPPLY! MEGA Forged aluminum lower receiver. Compatible with any mil-spec forged upper receiver on the market. Hard-coat anodized, with the Mega Arms logo fully engraved on the (shooter's) left side. Shop for this Lower HERE.

 

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SOLD OUT

MEGA Billet aluminum lower receiver. Perfectly matched to Mega's billet upper receivers. Hard-coat anodized, with the Mega Arms logo fully engraved on the (shooter's) left side.