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Important NFA Update
NEW GUIDANCE
FOR SILENCERS
Now In Effect
See Local Laws & Guidelines
Before Purchasing.
 
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Brownells
BRN®-180 SCNR
IS BACK IN STOCK
You've been waiting. Don't miss out again.
Brownells
BRN®-180
SCNR
Back In Stock
You've been waiting.
Don't miss out again.
Back In Stock!
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Brownells Exclusive
DANIEL DEFENSE
MK18 & M4A1
STRIPPED UPPERS
 
Featuring RIS II & RIS III rails, cold hammer forged barrels & legendary Daniel Defense quality.
Explore The Uppers
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SMALLER.
LIGHTER.
STRONGER.
Meet the New
LAW FOLDER GEN S
SMALLER.
LIGHTER.
STRONGER.
Meet the New
LAW FOLDER GEN S
Take A Look
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GEISSELE
12% OFF
TRIGGERS
Full-Power Springs &
An Unmatched Break.
Use Code: TRIGGER12
GEISSELE
12% OFF
TRIGGERS
Full-Power Springs &
An Unmatched Break.
Use Code: TRIGGER12
Shop Geissele!
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A RIFLE TO GET YOU
TO HELL AND BACK

Brownells HK416 Compatible BRN-4 Line
Explore The BRN-4

Upper Receivers 66 Items

Upper Receivers — 66 Products In Stock / 28 Models

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Our Upper Receivers selection features 66 in-stock products including from 31 premium brands including AERO PRECISION, BROWNELLS, & BROWNELLS BUNDLES.  Browse our full selction of Rifle Receivers & Parts.