Skip to main content
We may get paid by partner for deals, including promoted items

Menu

Trending
Top Brands Palmetto State ArmoryHot Yeti CoolerDeal NatchezDeal SitkaDeal 5.11Sale Winter Clearance Amazon Pickleball Sale Amazon FitnessHot Stores
RADICAL FIREARMS Complete AR-15 Lower Receiver (FL-M4) by Radical Firearms -

Product Description

Shop RADICAL FIREARMS Complete AR-15 Lower Receiver (FL-M4). Buy best Lower Receivers & Frames from gritrsports.com | Reviews and Shipping options available

RADICAL FIREARMS Complete AR-15 Lower Receiver (FL-M4)

at GritrSports
Browse all GritrSports deals
$169.99
In Stock at GritrSports
Price verified 2d ago
Buy Now at GritrSports
Secure checkout Easy returns
or compare prices
Amazon logo Amazon eBay logo eBay

Product Details

Brand Radical Firearms
Condition new
Radical Firearms

Shop more Radical Firearms Gun Parts

All 18 in-stock Radical Firearms Gun Parts from 6 stores →

More from Radical Firearms

KFF Defense
Last Updated:
Oct 26, 2026 07:35 AM
Radical Firearms Forged RPR Black Hard Coat Anodized M-LOK 5.56x45mm NATO 10.50" AR-Pistol Radical Firearms Forged RPR Black Hard Coat Anodized M-LOK 5.56x45mm NATO 10.50" AR-Pistol View Details
$512.95 $537.80
5% off
Buy Now · $512.95
KFF Defense
GrabAGun
Last Updated:
Oct 26, 2026 07:23 AM
Sold Out
Radical Firearms RPR 7.62 X 39 7.5 Threaded Barrel 20-Rounds w/ Brace Radical Firearms RPR 7.62 X 39 7.5 Threaded Barrel 20-Rounds w/ Brace View Details
$499.99
Buy Now · $499.99
GrabAGun
GrabAGun
Last Updated:
Oct 26, 2026 07:23 AM
Radical Firearms Forged 5.56 / .223 Rem 16 Barrel 30-Rounds Radical Firearms Forged 5.56 / .223 Rem 16 Barrel 30-Rounds View Details
$449.99 $549.00
18% off
Buy Now · $449.99
GrabAGun
GrabAGun
Last Updated:
Oct 26, 2026 07:23 AM
Radical Firearms AR-15 Upper Receiver Stripped Radical Firearms AR-15 Upper Receiver Stripped View Details
$59.79
Buy Now · $59.79
GrabAGun
GrabAGun
Last Updated:
Oct 26, 2026 07:23 AM
Sold Out
Radical Firearms AR-15 .300 AAC Blackout 16 Threaded Barrel 30-Rounds Radical Firearms AR-15 .300 AAC Blackout 16 Threaded Barrel 30-Rounds View Details
$489.99 $684.95
28% off
Buy Now · $489.99
GrabAGun
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
Radical Firearms FR16-5.56SOC-15SHR-FDE Rifle, 5.56 NATO, 16\" Barrel, 30+1, Semi-Auto, Optics-Ready, B5 Stock. Radical Firearms FR16-5.56SOC-15SHR-FDE Rifle, 5.56 NATO, 16\" Barrel, 30+1, Semi-Auto, Optics-Ready, B5 Stock. View Details
$410.00
Buy Now · $410.00
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
Radical Firearms FR16-5.56SOC-15SHR-ODG Rifle, 5.56 NATO, 16\" Barrel, 30+1, Semi-Auto, B5 Stock, 15\" M-LOK Rail. Radical Firearms FR16-5.56SOC-15SHR-ODG Rifle, 5.56 NATO, 16\" Barrel, 30+1, Semi-Auto, B5 Stock, 15\" M-LOK Rail. View Details
$410.00
Buy Now · $410.00
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
Radical Firearms FR16-5.56SOC-15SHR-GRY Rifle, 5.56 NATO, 16\" Barrel, 30+1, Semi-Auto, B5 Bravo Stock, 15\" M-LOK Rail. Radical Firearms FR16-5.56SOC-15SHR-GRY Rifle, 5.56 NATO, 16\" Barrel, 30+1, Semi-Auto, B5 Bravo Stock, 15\" M-LOK Rail. View Details
$410.00
Buy Now · $410.00
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
Radical Firearms FR-16 5.56 NATO 16\" Semi-Auto Rifle M81 Camo 30+1 Radical Firearms FR-16 5.56 NATO 16\" Semi-Auto Rifle M81 Camo 30+1 View Details
$463.39
Buy Now · $463.39
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
Radical Firearms FP105300HBAR10RPRBMPSB AR Pistol, 300 Blackout, 10.5\" Barrel, 30+1, Semi-Auto, RPR Rail, Optics-Ready. Radical Firearms FP105300HBAR10RPRBMPSB AR Pistol, 300 Blackout, 10.5\" Barrel, 30+1, Semi-Auto, RPR Rail, Optics-Ready. View Details
$442.00
Buy Now · $442.00
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
Radical Firearms FP105762X39HBAR10RPRBM AR Pistol, 7.62x39mm, 10.5\" Barrel, 20+1 Rounds, Semi-Auto, MIL-STD Receivers, 10\" RPR Free Float Rail. Radical Firearms FP105762X39HBAR10RPRBM AR Pistol, 7.62x39mm, 10.5\" Barrel, 20+1 Rounds, Semi-Auto, MIL-STD Receivers, 10\" RPR Free Float Rail. View Details
$449.99
Buy Now · $449.99
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
Radical Firearms FP105556M410RPRBMPSB AR-15 Pistol, 5.56x45mm NATO, 10.50\" Barrel, 30+1, Semi-Auto, Free-Float Rail. Radical Firearms FP105556M410RPRBMPSB AR-15 Pistol, 5.56x45mm NATO, 10.50\" Barrel, 30+1, Semi-Auto, Free-Float Rail. View Details
$414.93
Buy Now · $414.93
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
Radical Firearms RF-15 Pistol FP7.5-5.56M4-7RPR-BTR, Pistol, 5.56 NATO, 7.5\" Barrel, 30rd, Semi-Auto, M-LOK, Magpul BTR Brace. Radical Firearms RF-15 Pistol FP7.5-5.56M4-7RPR-BTR, Pistol, 5.56 NATO, 7.5\" Barrel, 30rd, Semi-Auto, M-LOK, Magpul BTR Brace. View Details
$449.99
Buy Now · $449.99
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
Hot 🔥
Radical Firearms AR-15 RF00966 Forged Stripped Lower Receiver, Rifle, Multi-Caliber, Black, Hardcoat Anodized, 7075-T6 Aluminum Radical Firearms AR-15 RF00966 Forged Stripped Lower Receiver, Rifle, Multi-Caliber, Black, Hardcoat Anodized, 7075-T6 Aluminum View Details
$49.99 $80.99
38% off
Buy Now · $49.99
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
RADICAL RF-15, Semi Automatic AR-15 Pistol, 5.56 NATO, 10.5\" Barrel, 30rd Magazine, Black Magpul BTR Brace, Magpul Pistol Grip RADICAL RF-15, Semi Automatic AR-15 Pistol, 5.56 NATO, 10.5\" Barrel, 30rd Magazine, Black Magpul BTR Brace, Magpul Pistol Grip View Details
$419.99 $448.06
6% off
Buy Now · $419.99
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:12 AM
RADICAL RF-15, Semi Automatic AR-15 Pistol, 300BLK, 10.5\" Barrel, 30rd Magazine, MAGPUL BTR BRACE, MAGPUL GRIP RADICAL RF-15, Semi Automatic AR-15 Pistol, 300BLK, 10.5\" Barrel, 30rd Magazine, MAGPUL BTR BRACE, MAGPUL GRIP View Details
$429.99
Buy Now · $429.99
Classic Firearms
Cabela's Program
Last Updated:
Oct 28, 2026 02:07 AM
Radical Firearms ~ RF-15 ~ 5.56 Nato Radical Firearms ~ RF-15 ~ 5.56 Nato View Details
$399.99
Buy Now · $399.99
Cabela's Program
Ammunition Depot
Last Updated:
Oct 26, 2026 06:44 AM
Radical Firearms 223/5.56 10.50 30+1 (Semiauto) FP105556M410RPR Radical Firearms 223/5.56 10.50 30+1 (Semiauto) FP105556M410RPR View Details
$512.95
Buy Now · $512.95
Ammunition Depot
Ammunition Depot
Last Updated:
Oct 26, 2026 06:44 AM
Radical Firearms Complete Upper Receiver - 5.56 NATO 16" Barrel 1:7 Twist M-LOK Radical Firearms Complete Upper Receiver - 5.56 NATO 16" Barrel 1:7 Twist M-LOK View Details
$433.97
Buy Now · $433.97
Ammunition Depot
Cabela's Program
Last Updated:
Oct 28, 2026 02:20 AM
RADICAL FIREARMS ~ RF-15 ~ 5.56 NATO RADICAL FIREARMS ~ RF-15 ~ 5.56 NATO View Details
$459.99
Buy Now · $459.99
Cabela's Program