An impossible to get factory part that’s necessary to keep that 37A shooting. Locates the forearm on the barrel and keeps the barrel from inadvertently coming off. Also fits 370 and 840, all gauges Mfg: Nu-Line SPECS: Plastic, black.
- Home
- Guns
- AR Rifles & PistolsCompleted AR rifles and pistols at great prices.
- AK Rifles & PistolsCompleted AK rifles and pistols at great prices.
- Traditional RiflesCompleted rifles at great prices.
- HandgunsCompleted handguns at great prices.
- ShotgunsComplete Shotguns
- BlemishedPrimary Tactical has a great selection of blemished rifles at discounted prices from the brands you know and trust.
- AR-10
- Complete UppersCompleted AR-10/.308 WIN/7.62x51mm uppers.
- Complete LowersAR-10/308 WIN/LR-308/6.5 Creedmoor Complete Lowers
- BarrelsAR-10/308 WIN/LR-308/6.5 Creedmoor Barrels
- Bolt CarriersAR-10/308 WIN/LR-308/6.5 Creedmoor Bolts and Bolt Carrier Groups
- BuffersAR-10/308 WIN/LR-308/6.5 Creedmoor Buffer Tubes and Kits
- Charging HandlesAR-10/308 WIN/LR-308/6.5 Creedmoor Charging Handles
- ForegripsAR-10/308 WIN/LR-308/6.5 Creedmoor Foregrips
- Gas BlocksAR-10/308 WIN/LR-308/6.5 Creedmoor Gas Blocks and Tubes
- Lower ReceiversAR-10/308 WIN/LR-308/6.5 Creedmoor Lower Receivers
- Lower PartsAR-10/308 WIN/LR-308/6.5 Creedmoor Lower Parts
- MagazinesAR-10/308 WIN/LR-308/6.5 Creedmoor Magazines
- Muzzle DevicesAR-10/308 WIN/LR-308/6.5 Creedmoor Muzzle Devices. Flash hiders, compensators and muzzle brakes.
- Parts KitsAR-10/308 WIN/LR-308/6.5 Creedmoor Upper and Lower Parts Kits
- Pistol GripsAR-10/308 WIN/LR-308/6.5 Creedmoor Pistol Grips
- Rails & HandguardsAR-10/308 WIN/LR-308/6.5 Creedmoor Rails and Handguards
- Rifle KitsAR-10/308 WIN/LR-308/6.5 Creedmoor Rifle Build Kits
- StocksAR-10/308 WIN/LR-308/6.5 Creedmoor Stocks
- Upper PartsAR-10/308 WIN/LR-308/6.5 Creedmoor Upper Parts
- Upper ReceiversAR-10/308 WIN/LR-308/6.5 Creedmoor Upper Receivers
- AR-15
- Complete UppersComplete AR-15/.223/300 BLK/450 Bushmaster uppers.
- Complete LowersAR-15/.223/300 BLK/450 Bushmaster Complete Lowers
- BarrelsAR-15/.223/300 BLK/450 Bushmaster Barrels
- Bolt CarriersAR-15/.223/300 BLK/450 Bushmaster Bolts and Bolt Carrier Groups
- BuffersAR-15/.223/300 BLK/450 Bushmaster Buffer Tubes
- Charging HandlesAR-15/.223/300 BLK/450 Bushmaster Charging Handles
- ForegripsAR-15/.223/300 BLK/450 Bushmaster Foregrips
- Gas BlocksAR-15/.223/300 BLK/450 Bushmaster Gas Blocks
- Lower ReceiversAR-15/.223/300 BLK/450 Bushmaster Lower Receivers
- Lower PartsAR-15/.223/300 BLK/450 Bushmaster Lower Parts
- MagazinesAR-15/.223/300 BLK/450 Bushmaster Magazines
- Muzzle DevicesAR-15/.223/300 BLK/450 Bushmaster Muzzle Devices. Flash hiders, compensators and muzzle brakes.
- Parts KitsAR-15/.223/300 BLK/450 Bushmaster Parts Kits
- Pistol GripsAR-15/.223/300 BLK/450 Bushmaster Pistol Grips
- Rails & HandguardsAR-15/.223/300 BLK/450 Bushmaster Rails and Handguards
- Rifle KitsAR-15/.223/300 BLK/450 Bushmaster Rifle Build Kits
- StocksAR-15/.223/300 BLK/450 Bushmaster Stocks
- Upper PartsAR-15/.223/300 BLK/450 Bushmaster Upper Parts
- Upper ReceiversAR-15/.223/300 BLK/450 Bushmaster Upper Receivers
- Rifle Parts
- Barrel Parts
- Bolt Parts
- Forend & Handguard Parts
- Gas System Parts
- Grip Parts
- Rifle MagazinesPrimary Tactical has a great selection of rifle magazines. Check here to find the right caliber from the brands you know and trust.
- Muzzle Devices
- Receiver Parts
- Safety Parts
- Sights
- Stock Parts
- Trigger Parts
- Handgun Parts
- Action PartsGreat selection of handgun action parts from trusted brands.
- Barrel PartsGreat selection of handgun barrel parts from trusted brands.
- Frame Parts
- Grip Parts
- Handgun MagazinesLarge selection of handgun magazines from the brands you trust.
- Receiver Parts
- Recoil Parts
- Safety Parts
- Sights
- Slide Parts
- Trigger Group Parts
- Shotgun Parts
- Optics
- Electronic SightsThe best selection of electronic sights you’ll find from the brands you trust.
- Scopes
- Mounts & BasesThe best selection of mounts and bases for your optics that you’ll find from the brands you trust.
- Action Cameras
- Binoculars & Accessories
- Optic Accessories
- Rangefinders
- Rings
- Spotting Scopes & Accessories
- Night VisionPrimary Tactical has the best selection of night vision optics from the brands you trust.
- Accessories
- BipodsPrimary Tactical offers a great selection of firearm bipods for your rifles.
- HolstersPrimary Tactical offers a great selection of firearm holsters for your handguns.
- Magazine CarriersPrimary Tactical offers a great selection of magazine carriers.
- SlingsPrimary Tactical offers a great selection of firearm slings for your rifles.
- Ammunition
- Rifle Ammo
- Handgun Ammo
- Shotgun Ammo
- Rimfire Ammo
- Ammo BoxesPrimary Tactical has a variety of ammo boxes for your ammunition storage needs.
- Reloading
- Gun Cleaning
- Gunsmithing
- Books & Videos
- Safety Equipment
- Shop Accessories & Supplies
- General Gunsmith ToolsPrimary Tactical has all the gunsmithing tools and supplies you need.
- Barrel ToolsPrimary Tactical has a variety of Barrel Tools for your gunsmithing needs.
- Handgun ToolsPrimary Tactical has a variety of Handgun Tools for your gunsmithing needs.
- Rifle ToolsPrimary Tactical has a variety of Rifle Tools for your gunsmithing needs.
- Measuring Tools
- Metal Prep & Coloring
- Power Tools & Accessories
- Shotgun Tools
- Sight & Scope Installation Tools
- Small Hardware
- Stock Work & Finishing
- Armor
- Home
- Guns
- AR Rifles & PistolsCompleted AR rifles and pistols at great prices.
- AK Rifles & PistolsCompleted AK rifles and pistols at great prices.
- Traditional RiflesCompleted rifles at great prices.
- HandgunsCompleted handguns at great prices.
- ShotgunsComplete Shotguns
- BlemishedPrimary Tactical has a great selection of blemished rifles at discounted prices from the brands you know and trust.
- AR-10
- Complete UppersCompleted AR-10/.308 WIN/7.62x51mm uppers.
- Complete LowersAR-10/308 WIN/LR-308/6.5 Creedmoor Complete Lowers
- BarrelsAR-10/308 WIN/LR-308/6.5 Creedmoor Barrels
- Bolt CarriersAR-10/308 WIN/LR-308/6.5 Creedmoor Bolts and Bolt Carrier Groups
- BuffersAR-10/308 WIN/LR-308/6.5 Creedmoor Buffer Tubes and Kits
- Charging HandlesAR-10/308 WIN/LR-308/6.5 Creedmoor Charging Handles
- ForegripsAR-10/308 WIN/LR-308/6.5 Creedmoor Foregrips
- Gas BlocksAR-10/308 WIN/LR-308/6.5 Creedmoor Gas Blocks and Tubes
- Lower ReceiversAR-10/308 WIN/LR-308/6.5 Creedmoor Lower Receivers
- Lower PartsAR-10/308 WIN/LR-308/6.5 Creedmoor Lower Parts
- MagazinesAR-10/308 WIN/LR-308/6.5 Creedmoor Magazines
- Muzzle DevicesAR-10/308 WIN/LR-308/6.5 Creedmoor Muzzle Devices. Flash hiders, compensators and muzzle brakes.
- Parts KitsAR-10/308 WIN/LR-308/6.5 Creedmoor Upper and Lower Parts Kits
- Pistol GripsAR-10/308 WIN/LR-308/6.5 Creedmoor Pistol Grips
- Rails & HandguardsAR-10/308 WIN/LR-308/6.5 Creedmoor Rails and Handguards
- Rifle KitsAR-10/308 WIN/LR-308/6.5 Creedmoor Rifle Build Kits
- StocksAR-10/308 WIN/LR-308/6.5 Creedmoor Stocks
- Upper PartsAR-10/308 WIN/LR-308/6.5 Creedmoor Upper Parts
- Upper ReceiversAR-10/308 WIN/LR-308/6.5 Creedmoor Upper Receivers
- AR-15
- Complete UppersComplete AR-15/.223/300 BLK/450 Bushmaster uppers.
- Complete LowersAR-15/.223/300 BLK/450 Bushmaster Complete Lowers
- BarrelsAR-15/.223/300 BLK/450 Bushmaster Barrels
- Bolt CarriersAR-15/.223/300 BLK/450 Bushmaster Bolts and Bolt Carrier Groups
- BuffersAR-15/.223/300 BLK/450 Bushmaster Buffer Tubes
- Charging HandlesAR-15/.223/300 BLK/450 Bushmaster Charging Handles
- ForegripsAR-15/.223/300 BLK/450 Bushmaster Foregrips
- Gas BlocksAR-15/.223/300 BLK/450 Bushmaster Gas Blocks
- Lower ReceiversAR-15/.223/300 BLK/450 Bushmaster Lower Receivers
- Lower PartsAR-15/.223/300 BLK/450 Bushmaster Lower Parts
- MagazinesAR-15/.223/300 BLK/450 Bushmaster Magazines
- Muzzle DevicesAR-15/.223/300 BLK/450 Bushmaster Muzzle Devices. Flash hiders, compensators and muzzle brakes.
- Parts KitsAR-15/.223/300 BLK/450 Bushmaster Parts Kits
- Pistol GripsAR-15/.223/300 BLK/450 Bushmaster Pistol Grips
- Rails & HandguardsAR-15/.223/300 BLK/450 Bushmaster Rails and Handguards
- Rifle KitsAR-15/.223/300 BLK/450 Bushmaster Rifle Build Kits
- StocksAR-15/.223/300 BLK/450 Bushmaster Stocks
- Upper PartsAR-15/.223/300 BLK/450 Bushmaster Upper Parts
- Upper ReceiversAR-15/.223/300 BLK/450 Bushmaster Upper Receivers
- Rifle Parts
- Barrel Parts
- Bolt Parts
- Forend & Handguard Parts
- Gas System Parts
- Grip Parts
- Rifle MagazinesPrimary Tactical has a great selection of rifle magazines. Check here to find the right caliber from the brands you know and trust.
- Muzzle Devices
- Receiver Parts
- Safety Parts
- Sights
- Stock Parts
- Trigger Parts
- Handgun Parts
- Action PartsGreat selection of handgun action parts from trusted brands.
- Barrel PartsGreat selection of handgun barrel parts from trusted brands.
- Frame Parts
- Grip Parts
- Handgun MagazinesLarge selection of handgun magazines from the brands you trust.
- Receiver Parts
- Recoil Parts
- Safety Parts
- Sights
- Slide Parts
- Trigger Group Parts
- Shotgun Parts
- Optics
- Electronic SightsThe best selection of electronic sights you’ll find from the brands you trust.
- Scopes
- Mounts & BasesThe best selection of mounts and bases for your optics that you’ll find from the brands you trust.
- Action Cameras
- Binoculars & Accessories
- Optic Accessories
- Rangefinders
- Rings
- Spotting Scopes & Accessories
- Night VisionPrimary Tactical has the best selection of night vision optics from the brands you trust.
- Accessories
- BipodsPrimary Tactical offers a great selection of firearm bipods for your rifles.
- HolstersPrimary Tactical offers a great selection of firearm holsters for your handguns.
- Magazine CarriersPrimary Tactical offers a great selection of magazine carriers.
- SlingsPrimary Tactical offers a great selection of firearm slings for your rifles.
- Ammunition
- Rifle Ammo
- Handgun Ammo
- Shotgun Ammo
- Rimfire Ammo
- Ammo BoxesPrimary Tactical has a variety of ammo boxes for your ammunition storage needs.
- Reloading
- Gun Cleaning
- Gunsmithing
- Books & Videos
- Safety Equipment
- Shop Accessories & Supplies
- General Gunsmith ToolsPrimary Tactical has all the gunsmithing tools and supplies you need.
- Barrel ToolsPrimary Tactical has a variety of Barrel Tools for your gunsmithing needs.
- Handgun ToolsPrimary Tactical has a variety of Handgun Tools for your gunsmithing needs.
- Rifle ToolsPrimary Tactical has a variety of Rifle Tools for your gunsmithing needs.
- Measuring Tools
- Metal Prep & Coloring
- Power Tools & Accessories
- Shotgun Tools
- Sight & Scope Installation Tools
- Small Hardware
- Stock Work & Finishing
- Armor
