In Stock
Ar-15 4.5'''' Barrel & Bolt Group Kit - Ar-15 4.5 Barrel & Bolt Group Kit Mt 4140cm 22lr
Sold byBrownells•Posted Apr 28, 2026
Compare prices for CMMG AR-15 Barrel 22 Long Rifle 4.5" Medium Contour 1:16" Twist Salt Bath Nitride$312.31
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Deal Summary
- Currently in stock.
- Caliber: 22lr
- Category: parts
- UPC: 815835016948
- SKU: 100037927
- Brand: Cmmg
Price History
Deal Details
In this Barrel and Bolt Group Kit, CMMG provides everything you need to convert your AR-15 into a dedicated .22 LR rimfire training platform. The barrel measures 4.5 inches long and is machined from 4140 chrome-moly steel, complete with a salt-bath nitride finish and a medium-taper profile. The barrel is optimized with a 1:16-inch twist that's compatible with most .22 LR bullets on the market, but the system runs best with 36-grain round-nose bullets. Each .22 LR Barrel and Bolt Group Kit from
Other Offers for This Product
Active offers from your catalog for CMMG AR-15 Barrel 22 Long Rifle 4.5" Medium Contour 1:16" Twist Salt Bath Nitride.
Comparing 4 retailers carrying this product
Lowest Price: $255.31
Highest Price: $312.31
You Save: $57.00
Avg Discount: 1% off
CMMG 22D5B6E Replacement Barrel Kit with Bolt Carrier Group, 22 LR 4.50 Threaded, Black Nitride Chromoly Steel, Fits AR-15/Mk4, Handgun Barrel
CmmgHinterland OutfittersSKU/UPC: 208544
$255.31
View at Hinterland Outfitters
CMMG AR-15 Barrel 22 Long Rifle 4.5" Medium Contour 1:16" Twist Salt Bath Nitride
CmmgMidwayUSASKU/UPC: 970360
$264.99
View at MidwayUSA
CMMG Inc Barrel and Bolt Group Kit Medium Taper 22LR 4.5in 4140CM
CmmgOptics PlanetSKU/UPC: 2CM-ATB-22LRKGP-22D5B6E
$307.49$324.95Save 5%
View at Optics PlanetAr-15 4.5'''' Barrel & Bolt Group Kit - Ar-15 4.5 Barrel & Bolt Group Kit Mt 4140cm 22lr
CmmgBrownellsSKU/UPC: 100037927
$312.31
View at Brownells