Build an AR
AR-15 lowers, uppers and parts, available to order, step by step. Lowers are the serialized part, so they're picked up here after the Form 4473 and background check, like a gun.
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Showing 73 to 96 of 100
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Cobalt Kinetics CK-PRO-SET-118-FDE CK-Pro Receiver Set Rifle Flat Dark Earth Cerakote
Multi
$1,256.80 Add to cart -
Battle Arms Development AE-LR-BLK Lower Receiver 223 Rem/5.56 NATO Aluminum Black Anodized
.223 REM/5.56 NATO
$334.95 Add to cart -
Franklin Armory Bfsiii Elite Salus Lower SBM4
MULTI-CAL
$682.35 Add to cart -
Santan STT-15L LT PLR LWR RCVR OD Green
Multi · Semi-Auto
$298.38 Add to cart -
Sharps Bros SBLR03 The Jack Stripped Lower Multi-Caliber Black Anodized Finish 7075-T6 Aluminum Compatible w/Mil-Spec AR-15 Internal Parts
Multi-Caliber · Semi-Auto
$309.65 Add to cart -
Spike’s Billet Lower GEN2 W/PARTS
Multi · Semi-Auto
$422.04 Add to cart -
Radian Weapons R0391 A-DAC 15 Lower Receiver OD Green, Fully Ambi Controls, Talon 45/90 Safety, Ext. Bolt Catch, Left-Side Mag Release, Right-Side Bolt Release, Enhanced Takedown Pins
Multi-Caliber · Semi-Auto
$534.32 Add to cart -
Sharps Bros SBLR08F Livewire Stripped Lower Multi-Caliber 7075-T6 Aluminum w/Black Anodized Finish Compatible w/Mil-Spec Internal Parts
Multi · Semi-Auto
$149.95 Add to cart -
Sharps Bros SBLR11 Showdown Stripped Lower Multi-Caliber Black Anodized 7075-T6 Aluminum Compatible w/Mil-Spec AR-15 Parts
Multi-Caliber · Semi-Auto
$284.95 Add to cart -
Radian Weapons R0166 A-DAC 15 Lower Receiver Black, Fully Ambi Controls, Talon 45/90 Safety, Ext. Bolt Catch, Left-Side Mag Release, Right-Side Bolt Release, Enhanced Takedown Pins
Multi-Caliber · Semi-Auto
$534.29 Add to cart -
Radian Weapons R0435 Builder Kit Radian Black, A-DAC 15 Fully Ambi Lower, 8.50″ M-LOK Handgaurd, Raptor-SD Charging Handle, Talon 45/90 Safety, Ext. Bolt Catch, Left-Side Mag Release, Right-Side Bolt
Multi
$1,264.95 Add to cart -
Radian Weapons R0427 Model 1 Builder Kit 10″ Magpul M-LOK Handguard
$1,301.23 Add to cart -
Radian Weapons R0428 Model 1 Builder Kit 10″ Magpul M-LOK Handguard
$1,301.23 Add to cart -
Radian Weapons R0406 Model 1 Builder Kit 15.50″ Magpul M-LOK Handguard
$1,451.50 Add to cart -
Radian Weapons R0414 Model 1 Builder Kit 14″ Magpul M-LOK Handguard
Multi · Semi-Auto
$1,410.04 Add to cart -
Radian Weapons R0430 Model 1 Builder Kit 10″ Magpul M-LOK Handguard
$1,301.23 Add to cart -
Sharps Bros SBLR07 Overthrow Stripped Lower Multi-Caliber Black Anodized Finish 7075-T6 Aluminum Compatible w/Mil-Spec Ar-15 Internal Parts
Multi · Semi-Auto
$271.11 Add to cart -
Sharps Bros SBLR01 Hellbreaker Stripped Lower Multi-Caliber Black Anodized Finish 7075-T6 Aluminum Material Compatible w/Mil-Spec AR-15 Internal Parts
Multi-Caliber · Semi-Auto
$280.07 Add to cart -
Sharps Bros SBLR02 Warthog Stripped Lower Multi-Caliber Black Anodized Finish 7075-T6 Aluminum Compatible w/Mil-Spec AR-15 Internal Parts
Multi-Caliber · Semi-Auto
$271.11 Add to cart -
Radian Weapons Model 1 Builder Kit 17″ Black
Multi
$1,498.10 Add to cart -
Radian Weapons Model 1 Builder Kit 15.5″ Black
Multi · Semi-Auto
$1,451.47 Add to cart -
Radian Weapons Model 1 Builder Kit 15.5″ OD Green
$1,451.47 Add to cart -
Radian Weapons Model 1 Builder Kit 15.5″ Gray
$1,451.47 Add to cart -
Radian Weapons Model 1 Builder Kit 17″ FDE
$1,498.10 Add to cart
Google reviews
4.8 out of 5 from 189 Google reviews
Rating as of October 2026
As always great gun buying experience. The best shop in the greater area.
Great environment, knowledgeable staff and great inventory!
Literally one of my new happy places! It’s so amazing!
These guys are great! I’ve been shopping at Circle Star for years. If you want to work with down to earth and friendly guys with good prices, this is the place for you.
When it comes to customer service, Circle Star goes above and beyond. I have been investing in firearms, ammo, and equipment with this shop for years… and will continue to do so.
One of the best Firearm places I have been. Everyone is super nice and the owners rock. …
Great service, good atmosphere and the sales people are very professional. Good prices and selection as well. Worth the short drive out of town.
This is the best and most reasonable gun store I have ever been to. They are the nicest guys you will ever meet. … They will treat everyone the same whether you look like you could buy the store or barely afford a gun.
Give us a call
Talk to the guys at the store. We're open Monday to Saturday 9 AM to 6 PM and Sunday 10 AM to 5 PM.