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EXCLUSIVE DANIEL DEFENSE
MK18 & M4A1 STRIPPED UPPERS

RISII & RISIII Rails, Cold Hammer Forged Barrels
& Legendary Daniel Defense Quality
Explore The Uppers
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BROWNELLS BRN-180® GEN3

You've Been Waiting - Don't Miss Out Again!
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THE GOLD STANDARD
OF AR UPGRADES!

Shop Geissele Uppers,
Triggers, and Upgrades!
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EXCLUSIVE HOWA BARRELED ACTIONS
- PERFORMANCE GUARANTEED

Howa barreled actions ensure
the confidence needed to hit your mark
on the range, at competition or on the hunt!
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THE BETTER HALF
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Brownells BRN-180M
Fully Ambidextrous Lower
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Rifle Receivers & Parts

333 Items

Rifle Receivers & Parts — 333 Products In Stock / 107 Models

Our Rifle Receivers & Parts selection features 333 in-stock products including Upper Receivers, Rifle Barreled Actions, & Bolt Catch Parts from 88 premium brands including AERO PRECISION, BROWNELLS, & HOWA.  Browse our full Rifle Parts selection here.

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Products:  1  –  32  of 338
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DANIEL DEFENSE - MK18 STRIPPED SOCOM UPPER RECEIVER DANIEL DEFENSE - MK18 STRIPPED SOCOM UPPER RECEIVER
5 Stars
(4.5)

$899.99

In stock
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DANIEL DEFENSE - M4A1 RIII 5.56X45MM STRIPPED UPPER RECEIVER DANIEL DEFENSE - M4A1 RIII 5.56X45MM STRIPPED UPPER RECEIVER
5 Stars
(4.9)

$899.99

In stock
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DANIEL DEFENSE - MK18 RIII 5.56X45MM STRIPPED UPPER RECEIVER DANIEL DEFENSE - MK18 RIII 5.56X45MM STRIPPED UPPER RECEIVER
5 Stars
(4.8)

$899.99

In stock
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Product badge DANIEL DEFENSE - M4A1 SOCOM BLOCK II 5.56 NATO STRIPPED UPPER RECEIVER DANIEL DEFENSE - M4A1 SOCOM BLOCK II 5.56 NATO STRIPPED UPPER RECEIVER
5 Stars
(4.6)

$899.99 - $949.99

In stock
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DANIEL DEFENSE - M4A1 FSP 5.56X45MM STRIPPED UPPER RECEIVER DANIEL DEFENSE - M4A1 FSP 5.56X45MM STRIPPED UPPER RECEIVER
5 Stars
(4.9)

$899.99

In stock
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GEISSELE AUTOMATICS LLC - MK16 URG-I COMPLETE UPPER RECEIVERS 5.56MM GEISSELE AUTOMATICS LLC - MK16 URG-I COMPLETE UPPER RECEIVERS 5.56MM
5 Stars
(4.8)

$1,525.00

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Product badge GEISSELE AUTOMATICS LLC - AR-15 PREMIUM MIL-SPEC BUFFER TUBE ASSEMBLY WITH SUPER 42 GEISSELE AUTOMATICS LLC - AR-15 PREMIUM MIL-SPEC BUFFER TUBE ASSEMBLY WITH SUPER 42
5 Stars
(5.0)

$133.00 - $197.00

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Product badge GEISSELE AUTOMATICS LLC - AR-15 SUPER DUTY MOD1 5.56X45 NATO COMPLETE UPPER RECEIVER GEISSELE AUTOMATICS LLC - AR-15 SUPER DUTY MOD1 5.56X45 NATO COMPLETE UPPER RECEIVER
5 Stars
(4.1)

$1,325.00 - $1,450.00

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GEISSELE AUTOMATICS LLC - MARITIME BOLT CATCH FOR AR-15 GEISSELE AUTOMATICS LLC - MARITIME BOLT CATCH FOR AR-15
5 Stars
(4.5)

$31.00

In stock
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CMMG - AR-15 BUFFER RETAINER CMMG - AR-15 BUFFER RETAINER
5 Stars
(5.0)

$2.35 - $2.95

In stock
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MAGPUL - B.A.D. LEVER® BATTERY ASSIST DEVICE FOR AR-15/M4 MAGPUL - B.A.D. LEVER® BATTERY ASSIST DEVICE FOR AR-15/M4
5 Stars
(4.4)

$26.49

In stock
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BROWNELLS - AR-15/M16 DETENT TAKEDOWN SPRINGS BROWNELLS - AR-15/M16 DETENT TAKEDOWN SPRINGS
5 Stars
(5.0)

$0.99 - $2.99

In stock
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CMMG - AR-15 Ejection Cover Hinge Pin Snap Ring CMMG - AR-15 Ejection Cover Hinge Pin Snap Ring
5 Stars
(5.0)

$1.38

In stock
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BRAVO COMPANY - AR-15 COMPLETE WIDEBODY LOWER W/MK2RMS-M1T0 & MOD-2-SOPMOD STOCK BRAVO COMPANY - AR-15 COMPLETE WIDEBODY LOWER W/MK2RMS-M1T0 & MOD-2-SOPMOD STOCK
5 Stars
(4.6)

$559.00

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BRAVO COMPANY - RECEIVERS W/ MK2 RMS & MOD-1 SOPMOD STOCK BRAVO COMPANY - RECEIVERS W/ MK2 RMS & MOD-1 SOPMOD STOCK
5 Stars
(5.0)

$563.00

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GEISSELE AUTOMATICS LLC - AR-15 SUPER DUTY STRIPPED UPPER RECEIVERS 5.56MM GEISSELE AUTOMATICS LLC - AR-15 SUPER DUTY STRIPPED UPPER RECEIVERS 5.56MM
5 Stars
(5.0)

$1,025.00 - $1,150.00

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SPIKES TACTICAL - STRIPPED LOWER RECEIVER II NO-LOGO FOR AR-15 SPIKES TACTICAL - STRIPPED LOWER RECEIVER II NO-LOGO FOR AR-15
5 Stars
(0.0)

$96.99

Online Only - In stock
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MAGPUL - ENHANCED EJECTION PORT COVERS FOR AR-15 MAGPUL - ENHANCED EJECTION PORT COVERS FOR AR-15
5 Stars
(4.1)

$11.49 - $16.10

In stock
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AMERICAN DEFENSE MANUFACTURING - AR-15 UIC STRIPPED LOWER AMBI RECEIVER AMERICAN DEFENSE MANUFACTURING - AR-15 UIC STRIPPED LOWER AMBI RECEIVER
5 Stars
(4.6)

$399.99

Online Only - In stock
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Product badge RADIAN WEAPONS - A-DAC 15 AMBIDEXTROUS LOWER RECEIVER RADIAN WEAPONS - A-DAC 15 AMBIDEXTROUS LOWER RECEIVER
5 Stars
(5.0)

$514.95

Online Only - In stock
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WILSON COMBAT - AR-15 EJECTION PORT COVER PARTS KIT ONLY WILSON COMBAT - AR-15 EJECTION PORT COVER PARTS KIT ONLY
5 Stars
(5.0)

$3.95

In stock
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Product badge BRAVO COMPANY - AR-15 COMPLETE WIDEBODY LOWER RECEIVER WITH MOD-2-SOPMOD STOCK BRAVO COMPANY - AR-15 COMPLETE WIDEBODY LOWER RECEIVER WITH MOD-2-SOPMOD STOCK
5 Stars
(5.0)

$535.00

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CMMG - AR-15 BOLT CATCH PLUNGER CMMG - AR-15 BOLT CATCH PLUNGER
5 Stars
(5.0)

$1.86

In stock
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BROWNELLS - AR-15 FORWARD ASSIST ROLL PIN BROWNELLS - AR-15 FORWARD ASSIST ROLL PIN
5 Stars
(2.5)

$4.99

In stock
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FORWARD CONTROLS DESIGN LLC - AR-15 BUFFER RETAINER STAINLESS STEEL FORWARD CONTROLS DESIGN LLC - AR-15 BUFFER RETAINER STAINLESS STEEL
5 Stars
(5.0)

$7.60

In stock
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GEISSELE AUTOMATICS LLC - SUPER DUTY TAKEDOWN PIN SET GEISSELE AUTOMATICS LLC - SUPER DUTY TAKEDOWN PIN SET
5 Stars
(5.0)

$19.00

In stock
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Z-M WEAPONS - AR-15/M16 ACCU-WEDGE Z-M WEAPONS - AR-15/M16 ACCU-WEDGE
5 Stars
(4.0)

$13.99

In stock
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LUTH-AR LLC - AR-15 EJECTION PORT COVER SPRINGS LUTH-AR LLC - AR-15 EJECTION PORT COVER SPRINGS
5 Stars
(5.0)

$0.89

In stock
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GEISSELE AUTOMATICS LLC - ULTRA DUTY CHECKERED TAKEDOWN PIN SET GEISSELE AUTOMATICS LLC - ULTRA DUTY CHECKERED TAKEDOWN PIN SET
5 Stars
(0.0)

$28.00

In stock
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BROWNELLS - BRN-15 UPPER RECEIVERS 5.56MM NATO BROWNELLS - BRN-15 UPPER RECEIVERS 5.56MM NATO
5 Stars
(3.8)

$399.99 - $429.99

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LMT DEFENSE - MARS-L SOPMOD COMPLETE LOWER RECEIVER LMT DEFENSE - MARS-L SOPMOD COMPLETE LOWER RECEIVER
5 Stars
(4.7)

$969.30

Online Only - In stock
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FAXON FIREARMS - FX7 6.5 CREEDMOOR BARRELED BOLT ACTION RECEIVER FAXON FIREARMS - FX7 6.5 CREEDMOOR BARRELED BOLT ACTION RECEIVER
5 Stars
(0.0)

$1,038.68 - $1,057.08

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Products:  1  –  32  of 338