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LIGHTER.
STRONGER.

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Triggers, and Upgrades!
Upgrade Your AR!
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TURN YOUR AR INTO
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BROWNELLS BRN-180® GEN3

You've Been Waiting - Don't Miss Out Again!
Back In Stock!

Buffer Tube Parts 31 Items

Buffer Tube Parts Up To 21% Off— 31 Products In Stock / 7 Models

Buffer Tube Parts are purpose-built components designed to deliver consistent performance for the specific needs of recreational shooters, hunters, and professionals. Our lineup includes 31 in-stock products with savings Up To 21% Off on qualifying orders, all backed by our Forever Guarantee®.

We carry Buffer Tube Parts from 21 of the most respected brands in the industry, including LUTH-AR LLC, STRIKE INDUSTRIES, COLT, HECKLER & KOCH. Verified buyers rate our Buffer Tube Parts 4.5 Ratings out of 150 Reviews from verified buyers, reflecting the durability and craftsmanship that earn repeat purchases.

From the range to the field, every Buffer Tube Parts product we ship meets the standards our customers have trusted since 1939. Continue browsing our full selection of Rifle Stocks & Parts for more great products at Brownells.

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Product badge SONS OF LIBERTY GUN WORKS - CASTLE NUT FOR AR-15 SONS OF LIBERTY GUN WORKS - CASTLE NUT FOR AR-15
5 Stars
(5.0)
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In stock
BRAVO COMPANY - AR-15/M16 QUICK DETACH RECEIVER END PLATE BRAVO COMPANY - AR-15/M16 QUICK DETACH RECEIVER END PLATE
5 Stars
(5.0)

$16.95

In stock
Product badge SONS OF LIBERTY GUN WORKS - RECEIVER END PLATE FOR AR-15 SONS OF LIBERTY GUN WORKS - RECEIVER END PLATE FOR AR-15
5 Stars
(5.0)
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In stock
Product badge LUTH-AR LLC - AR-15 MBA-3/MBA-4 CARBINE CASTLE NUT LUTH-AR LLC - AR-15 MBA-3/MBA-4 CARBINE CASTLE NUT
5 Stars
(4.3)
Add to cart to see price

In stock
PRIMARY WEAPONS - AR-15 RATCHET CASTLE NUT QD END PLATE SET PRIMARY WEAPONS - AR-15 RATCHET CASTLE NUT QD END PLATE SET
5 Stars
(4.8)

$39.95

In stock
BROWNELLS - AR-15 A2 STOCK SPACER BROWNELLS - AR-15 A2 STOCK SPACER
5 Stars
(5.0)

$5.99

In stock
BROWNELLS - AR-15/M16 RECEIVER END PLATE BROWNELLS - AR-15/M16 RECEIVER END PLATE
5 Stars
(5.0)

$2.28

In stock
FORWARD CONTROLS DESIGN LLC - A5 CASTLE NUT FORWARD CONTROLS DESIGN LLC - A5 CASTLE NUT
5 Stars
(5.0)

$22.80 - $32.30

Select Items In Stock
FORWARD CONTROLS DESIGN LLC - AR-15 BILLET CASTLE NUT FORWARD CONTROLS DESIGN LLC - AR-15 BILLET CASTLE NUT
5 Stars
(5.0)

$19.00 - $28.50

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Product badge CMMG - AR-15 MK4 RECEIVER END PLATE CMMG - AR-15 MK4 RECEIVER END PLATE
5 Stars
(5.0)

$4.99

$5.69

In stock
MIDWEST INDUSTRIES, INC. - PICATINNY STOCK TUBE ADAPTER MIDWEST INDUSTRIES, INC. - PICATINNY STOCK TUBE ADAPTER
5 Stars
(4.0)

$83.95

In stock
J P ENTERPRISES - ENHANCED CARBINE BUTTSTOCK CASTLE NUT J P ENTERPRISES - ENHANCED CARBINE BUTTSTOCK CASTLE NUT
5 Stars
(5.0)

$15.15

In stock
Product badge CMMG - AR-15 AMBIDEXTROUS SINGLE-POINT RECEIVER END PLATE CMMG - AR-15 AMBIDEXTROUS SINGLE-POINT RECEIVER END PLATE
5 Stars
(5.0)

$5.99

$7.54

In stock
FIGHTLITE INDUSTRIES - MCR CARBINE STOCK SPACER FIGHTLITE INDUSTRIES - MCR CARBINE STOCK SPACER
5 Stars
(0.0)

$14.99

In stock
DOUBLE STAR - AR-15/M16 TWANG BUSTER DOUBLE STAR - AR-15/M16 TWANG BUSTER
5 Stars
(3.1)

$4.49

In stock
ERGO GRIPS - AR-15 RECEIVER EXTENSION CASTLE NUT ERGO GRIPS - AR-15 RECEIVER EXTENSION CASTLE NUT
5 Stars
(4.0)

$9.29

In stock
B5 SYSTEMS - AR-15 QD END PLATE B5 SYSTEMS - AR-15 QD END PLATE
5 Stars
(5.0)

$19.00

In stock
MIDWEST INDUSTRIES, INC. - QD SLING ATTACHMENT M-LOK MIDWEST INDUSTRIES, INC. - QD SLING ATTACHMENT M-LOK
5 Stars
(5.0)

$21.95

In stock
STRIKE INDUSTRIES - MULTI FUNCTION END PLATE AND ANTI-ROTATION CASTLE NUT STRIKE INDUSTRIES - MULTI FUNCTION END PLATE AND ANTI-ROTATION CASTLE NUT
5 Stars
(5.0)

$34.95

In stock
Product badge CMMG - AR-15 MK4 RECEIVER EXTENSION NUT CMMG - AR-15 MK4 RECEIVER EXTENSION NUT
5 Stars
(5.0)

$6.99

$8.46

In stock
SPIKES TACTICAL - AR-15/M16 22LR PISTOL PLUG SPIKES TACTICAL - AR-15/M16 22LR PISTOL PLUG
5 Stars
(4.5)

$19.99

In stock
V SEVEN WEAPON SYSTEMS - AR-15 QD ENDPLATE TITANIUM V SEVEN WEAPON SYSTEMS - AR-15 QD ENDPLATE TITANIUM
5 Stars
(3.0)

$43.65

In stock
Product badge LUTH-AR LLC - AR-15 MBA-3/MBA-4 CARBINE LATCH PLATE LUTH-AR LLC - AR-15 MBA-3/MBA-4 CARBINE LATCH PLATE
5 Stars
(4.0)
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In stock
HECKLER & KOCH - 416 NUT, RECEIVER EXTENSION, HK416 HECKLER & KOCH - 416 NUT, RECEIVER EXTENSION, HK416
5 Stars
(0.0)

$36.92

In stock
MIDWEST INDUSTRIES, INC. - QD SLING ADAPTOR M-LOK MIDWEST INDUSTRIES, INC. - QD SLING ADAPTOR M-LOK
5 Stars
(0.0)

$21.95

In stock
ERGO GRIPS - AR-15 PISTOL CALIBER CARBINE SPACER 9MM ERGO GRIPS - AR-15 PISTOL CALIBER CARBINE SPACER 9MM
5 Stars
(4.8)

$10.70

In stock
SPIKES TACTICAL - AR-15/M16 BUFFER SPACER SPIKES TACTICAL - AR-15/M16 BUFFER SPACER
5 Stars
(4.0)

$26.95

In stock
STRIKE INDUSTRIES - AR RECEIVER ENHANCED CASTLE NUT W/EXTENDED QD ENDPLATE STRIKE INDUSTRIES - AR RECEIVER ENHANCED CASTLE NUT W/EXTENDED QD ENDPLATE
5 Stars
(5.0)

$57.95 - $59.95

Select Items In Stock
COLT - AR-15 BUTTCAP SPACER COLT - AR-15 BUTTCAP SPACER
5 Stars
(1.0)

$5.99

In stock
STRIKE INDUSTRIES - ULTRALIGHT MULTI-FUNTION END PLATE & ANTI-ROTATION CASTLE NUT STRIKE INDUSTRIES - ULTRALIGHT MULTI-FUNTION END PLATE & ANTI-ROTATION CASTLE NUT
5 Stars
(0.0)

$35.95

In stock
J P ENTERPRISES - ENHANCED CARBINE BUTTSTOCK LOCK PLATE W/QD ATTACHMENT J P ENTERPRISES - ENHANCED CARBINE BUTTSTOCK LOCK PLATE W/QD ATTACHMENT
5 Stars
(0.0)

$34.15

In stock
Product badge LUTH-AR LLC - AR-15 BUFFER RETAINER LUTH-AR LLC - AR-15 BUFFER RETAINER
5 Stars
(4.0)
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Out of Stock
Products:  1  –  32  of 41