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350 Legend Complete Upper Assemblies, Upper Receivers from brands like CMMG, Radical Firearms, GLFA, and More! | Free Shipping Available! — 90 products / 159 models

Upgrade and outfit your firearm with the latest and greatest with the350 Legend Complete Upper Assembly and Magazines on your next build out. These uniquely designed accessories with 350 Legend Scopes are touted by professionals the world over for their innovative and new caliber design. Fast, straight-walled, and ideal for hunting, this 350 Legend Ammo & 350 Legend Bullet Seating Die gear is specially designed for sport shooting. Head on over to our Deals page for price cuts on the brands you know and love! Always remember, OpticsPlanet is here for you with Free Shipping On Orders Over $49.image

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Image of Moriarti M4/M16 Full Auto Comp Bolt Carrier Group Moriarti M4/M16 Full Auto Comp Bolt Carrier Group (1) List: $149.95 (Save 24%) $113.99
Image of AT3 Tactical AR-15 Bolt Carrier Group (BCG) AT3 Tactical AR-15 Bolt Carrier Group (BCG) (2) List: $114.99 (Save 21%) $90.65 Up to 12% Coupon
Image of Rock River Arms Carbine .350 Legend Completed Upper Rock River Arms Carbine .350 Legend Completed Upper List: $655.00 (Save 11%) $579.99
Image of TRYBE Defense 16.25 in Medium Profile AR-15 Rifle Barrel, .350 Legend 2 models TRYBE Defense 16.25 in Medium Profile AR-15 Rifle Barrel, .350 Legend (3) As Low As (Save Up to 38%) $99.99 12% Coupon
Image of Andro Corp Industries 16in AR-15 Complete M-LOK Upper Receiver with Flash Hider Assembly made-in-usa-flag 3 models Andro Corp Industries 16in AR-15 Complete M-LOK Upper Receiver with Flash Hider Assembly (1) As Low As (Save Up to 24%) $400.00 12% Coupon
Image of Rock River Arms Carbine SS .350 Legend Completed Upper Rock River Arms Carbine SS .350 Legend Completed Upper (4) List: $655.00 (Save $60.01) $594.99
Image of Bear Creek Arsenal BC-15 .350 Legend 10.5in Bolt Action Style Upper Receiver Bear Creek Arsenal BC-15 .350 Legend 10.5in Bolt Action Style Upper Receiver List: $419.99 (Save 26%) $309.99
Image of CMMG .350 Legend 16.1in Barrel Sub-Assm CMMG .350 Legend 16.1in Barrel Sub-Assm (4) List: $199.95 (Save 11%) $177.49 15% Coupon
Image of AT3 Tactical Tactical AR-15 Slick Side Billet Upper Receiver 7 models AT3 Tactical Tactical AR-15 Slick Side Billet Upper Receiver (2) As Low As (Save 30%) $89.99 12% Coupon
Image of Bear Creek Arsenal BC-15 .350 Legend 16in Bolt Action Style Upper Receiver 3 models Bear Creek Arsenal BC-15 .350 Legend 16in Bolt Action Style Upper Receiver As Low As (Save Up to 26%) $309.99
Image of Bushmaster Chrome Lined Phosphate Bolt Carrier Assembly Bushmaster Chrome Lined Phosphate Bolt Carrier Assembly List: $130.95 (Save 11%) $117.18
Image of Bear Creek Arsenal BC-15 .350 Legend 20in Bolt Action Style Upper Receiver 3 models Bear Creek Arsenal BC-15 .350 Legend 20in Bolt Action Style Upper Receiver As Low As (Save Up to 24%) $319.99
Image of JARD AR Left Side Charge Upper Reciever 2 models JARD AR Left Side Charge Upper Reciever As Low As $329.95
Image of Aero Precision M4E1-T 16in .350 Legend Complete Upper with Flash Hider made-in-usa-flag 2 models Aero Precision M4E1-T 16in .350 Legend Complete Upper with Flash Hider (4) As Low As (Save Up to 19%) $579.99
Image of Aero Precision M4E1-T 20in .350 Legend Complete Upper with Flash Hider made-in-usa-flag 2 models Aero Precision M4E1-T 20in .350 Legend Complete Upper with Flash Hider (1) As Low As (Save Up to 19%) $639.99
Image of Stag Arms AR-15 Pursuit .350 Legend 16in Barrel Upper Receiver made-in-usa-flag Stag Arms AR-15 Pursuit .350 Legend 16in Barrel Upper Receiver List: $699.99 (Save 14%) $599.99
Image of Bushmaster Bolt Rebuild Kit Bushmaster Bolt Rebuild Kit List: $27.95 (Save 20%) $22.32
Image of Stag Arms AR-15 Pursuit Left Hand Upper Receiver made-in-usa-flag 2 models Stag Arms AR-15 Pursuit Left Hand Upper Receiver List: $699.99 (Save 14%) $599.99
Image of CMMG Mk4 .350 Legend Resolute Upper Group Receiver 6 models CMMG Mk4 .350 Legend Resolute Upper Group Receiver As Low As (Save Up to 18%) $739.99 15% Coupon
Image of APF 350 Legend Carbine Upper APF 350 Legend Carbine Upper List: $674.99 (Save 10%) $607.49
Image of TacFire .350 Legend Built 16 inch Upper Receiver TacFire .350 Legend Built 16 inch Upper Receiver $319.99 Newly Added
Image of JARD AR Side Charge No Bolt Upper Receiver Assembly JARD AR Side Charge No Bolt Upper Receiver Assembly (1) List: $419.99 (Save 21%) $329.95
Image of JARD AR Side Charge .223/5.56 Upper Receiver Assembly 3 models JARD AR Side Charge .223/5.56 Upper Receiver Assembly (1) As Low As (Save Up to 18%) $329.95 Final Sale
Image of Bushmaster Bolt Replacement Kit Bushmaster Bolt Replacement Kit List: $159.95 (Save 10%) $143.39
Image of Brenton USA Scout 18in .350 Legend Upper Receiver 5 models Brenton USA Scout 18in .350 Legend Upper Receiver List: $1,269.99 (Save $70.00) $1,199.99
Image of Brenton USA Tracker 22in .350 Legend Upper Receiver 5 models Brenton USA Tracker 22in .350 Legend Upper Receiver List: $1,369.99 (Save $70.00) $1,299.99
Image of POF USA Minuteman 16.5 in Barrel .350 Legend Upper Receiver Assembly 2 models POF USA Minuteman 16.5 in Barrel .350 Legend Upper Receiver Assembly As Low As (Save Up to $62.00) $776.00
Image of CMMG Dissent Mk4 .350 Legend 16.1in Empire Profile Upper Group 8 models CMMG Dissent Mk4 .350 Legend 16.1in Empire Profile Upper Group As Low As (Save Up to 10%) $1,189.00
Image of TacFire .350 Legend 16 inch Unassembled Rifle Kit TacFire .350 Legend 16 inch Unassembled Rifle Kit $369.99 Newly Added
Image of CMMG Dissent Mk4 .350 Legend 16.1in Upper Group 8 models CMMG Dissent Mk4 .350 Legend 16.1in Upper Group As Low As (Save Up to 10%) $1,179.00
Image of Glfa Ar-15 Complete Upper .350 Legend Nit 18" M-lok Glfa Ar-15 Complete Upper .350 Legend Nit 18" M-lok Currently Unavailable
Image of Bear Creek Arsenal AR-15 450 Bushmaster/.458 SOCOM Gen 2 Upper Receiver, BCG Combo Bear Creek Arsenal AR-15 450 Bushmaster/.458 SOCOM Gen 2 Upper Receiver, BCG Combo Currently Unavailable
Image of Bear Creek Arsenal .223/5.56 NATO/.300 Blackout/.350 Legend Bolt Carrier Groups Bear Creek Arsenal .223/5.56 NATO/.300 Blackout/.350 Legend Bolt Carrier Groups Currently Unavailable
Image of Bear Creek Arsenal AR-15 .223/5.56 NATO/300 Blackout/350 Legend Gen 2 Upper Receiver, BCG Combo Bear Creek Arsenal AR-15 .223/5.56 NATO/300 Blackout/350 Legend Gen 2 Upper Receiver, BCG Combo Currently Unavailable
Image of Bear Creek Arsenal BC-15 .350 Legend Right Side Charging Rifle 20 Black Nitride Heavy Barrel 116 Twist Carbine Length Gas System 15 MLOK Forged No Magazine A08FF779 Bear Creek Arsenal BC-15 .350 Legend Right Side Charging Rifle 20 Black Nitride Heavy Barrel 116 Twist Carbine Length Gas System 15 MLOK Forged No Magazine A08FF779 Currently Unavailable
Image of Bear Creek Arsenal BC-15 .350 Legend Right Side Charging Rifle 18 416R SS Heavy Barrel 116 Twist Carbine Length Gas System 15 MLOK No Magazine DA225852 Bear Creek Arsenal BC-15 .350 Legend Right Side Charging Rifle 18 416R SS Heavy Barrel 116 Twist Carbine Length Gas System 15 MLOK No Magazine DA225852 Currently Unavailable
Image of Bear Creek Arsenal BC-15 .350 Legend Bolt Action Style Upper 20 Parkerized Heavy Barrel 116 Twist 15 MLOK 6BF264D9 Bear Creek Arsenal BC-15 .350 Legend Bolt Action Style Upper 20 Parkerized Heavy Barrel 116 Twist 15 MLOK 6BF264D9 Currently Unavailable
Image of Bear Creek Arsenal AR-15 .350 Legend 16in Upper Receiver Bear Creek Arsenal AR-15 .350 Legend 16in Upper Receiver Currently Unavailable
Image of Bear Creek Arsenal AR-15 .350 Legend 16in Barrel Standard Handguard Front Sight Upper Receiver Bear Creek Arsenal AR-15 .350 Legend 16in Barrel Standard Handguard Front Sight Upper Receiver Currently Unavailable
Image of Bear Creek Arsenal AR-15 .350 Legend 16in Barrel Standard Handguard with Gas Block Upper Receiver Bear Creek Arsenal AR-15 .350 Legend 16in Barrel Standard Handguard with Gas Block Upper Receiver Currently Unavailable
Image of Bear Creek Arsenal AR-15 .350 Legend 16in Left Side Charging Upper Receiver Bear Creek Arsenal AR-15 .350 Legend 16in Left Side Charging Upper Receiver Currently Unavailable
Image of Bear Creek Arsenal AR-15 .350 Legend 18in Upper Receiver Bear Creek Arsenal AR-15 .350 Legend 18in Upper Receiver Currently Unavailable
Image of Bear Creek Arsenal AR-15 .350 Legend 20in Upper Receiver Bear Creek Arsenal AR-15 .350 Legend 20in Upper Receiver Currently Unavailable
Image of CMMG Resolute 100 MK4 .350 Legend Upper Receiver CMMG Resolute 100 MK4 .350 Legend Upper Receiver Currently Unavailable
Image of Bear Creek Arsenal AR-15 350 Legend 16in Dual Charging Upper Receiver Bear Creek Arsenal AR-15 350 Legend 16in Dual Charging Upper Receiver Currently Unavailable
Image of Bear Creek Arsenal BC-15 .350 Legend 18in Bolt Action Style Upper Receiver Bear Creek Arsenal BC-15 .350 Legend 18in Bolt Action Style Upper Receiver Currently Unavailable
Image of CMMG 35B5FE2 Resolute 300 MK4 350 Legend 16.1" 4150 Chrome Moly Vanadium Steel M CMMG 35B5FE2 Resolute 300 MK4 350 Legend 16.1" 4150 Chrome Moly Vanadium Steel M Currently Unavailable
Image of Bear Creek Arsenal AR-15 .350 Legend 16in Stand Handguard A2 Front Sight Upper Receiver Bear Creek Arsenal AR-15 .350 Legend 16in Stand Handguard A2 Front Sight Upper Receiver Currently Unavailable
Image of Bear Creek Arsenal BCA .223 Wylde / 5.56 Nato / 300 Blackout / 350 Legend Bolt Assembly 60C9E47A Bear Creek Arsenal BCA .223 Wylde / 5.56 Nato / 300 Blackout / 350 Legend Bolt Assembly 60C9E47A Currently Unavailable
Image of Bear Creek Arsenal BC-15 .350 Legend Bolt Action Style Rifle 18 Parkerized Heavy Barrel 116 Twist 15 MLOK 70F5B173 Bear Creek Arsenal BC-15 .350 Legend Bolt Action Style Rifle 18 Parkerized Heavy Barrel 116 Twist 15 MLOK 70F5B173 Currently Unavailable
Image of Bear Creek Arsenal AR-15 .350 Legend 20in Left Side Charging Upper Receiver Bear Creek Arsenal AR-15 .350 Legend 20in Left Side Charging Upper Receiver Currently Unavailable
Image of Bear Creek Arsenal AR-15 .350 Legend 18in Right Side Charging Upper Receiver Bear Creek Arsenal AR-15 .350 Legend 18in Right Side Charging Upper Receiver Currently Unavailable
Image of Aagil Arms Complete AR-15 .350 Legend Upper Assembly 16in Barrel Length Carbine w/ 15in M-Lok Aagil Arms Complete AR-15 .350 Legend Upper Assembly 16in Barrel Length Carbine w/ 15in M-Lok (5) Currently Unavailable
Image of Jacob Grey Firearms 5.56 NATO Bolt Carrier Group (BCG) Jacob Grey Firearms 5.56 NATO Bolt Carrier Group (BCG) (2) Currently Unavailable
Image of Glfa Ar-15 Complete Upper .350 Legend S/s 16" M-lok Glfa Ar-15 Complete Upper .350 Legend S/s 16" M-lok Currently Unavailable
Image of Bear Creek Arsenal BC-15 .350 Legend Bolt Action Style Upper 16 Parkerized M4 Contour l 116 Twist 15 MLOK 2EB08A8E Bear Creek Arsenal BC-15 .350 Legend Bolt Action Style Upper 16 Parkerized M4 Contour l 116 Twist 15 MLOK 2EB08A8E Currently Unavailable
Image of Bear Creek Arsenal BC-15 .350 Legend Rifle 16 Parkerized M4 Barrel 116 Twist Carbine Length Gas System 15 MLOK No Magazine B61740A0 Bear Creek Arsenal BC-15 .350 Legend Rifle 16 Parkerized M4 Barrel 116 Twist Carbine Length Gas System 15 MLOK No Magazine B61740A0 Currently Unavailable
Image of Bear Creek Arsenal BC-15 .450 Bushmaster Bolt Action Style Upper 16 Parkerized Heavy Barel 124 Twist 15 MLOK BF4A88E2 Bear Creek Arsenal BC-15 .450 Bushmaster Bolt Action Style Upper 16 Parkerized Heavy Barel 124 Twist 15 MLOK BF4A88E2 Currently Unavailable
Image of Bear Creek Arsenal BC-15 .223/5.56 NATO/.300 Blackout/.350 Legend Lightweight Rear Charging AR-15 Bolt Carrier Group F4AFD75E Bear Creek Arsenal BC-15 .223/5.56 NATO/.300 Blackout/.350 Legend Lightweight Rear Charging AR-15 Bolt Carrier Group F4AFD75E Currently Unavailable
Image of Bear Creek Arsenal BC-15 .350 Legend Bolt Action Style Rifle 20 Parkerized Heavy Barrel 116 Twist 15 MLOK CBBAC6CA Bear Creek Arsenal BC-15 .350 Legend Bolt Action Style Rifle 20 Parkerized Heavy Barrel 116 Twist 15 MLOK CBBAC6CA Currently Unavailable
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