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
CMMG MT 16in 5.56mm Mid-Length Barrel (55DC70A) by Cmmg -

Product Description

4140CM SBN; Medium Taper Profile; 4140 Chrome Moly; Salt Bath Nitride Finish inside and out; 1:7 Twist; 5.56x45 NATO Chamber; Threaded 1/2-28; Midlength gas port; .750" Gas Journal

CMMG MT 16in 5.56mm Mid-Length Barrel (55DC70A)

at GritrSports
Browse all GritrSports deals
$161.99
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 Cmmg
Condition new
Barrels Cmmg

Shop more Cmmg Gun Parts

All 974 in-stock Cmmg Gun Parts from 29 stores →

More from Cmmg

TLO Outdoors
Last Updated:
Oct 26, 2026 06:06 AM
CMMG AR-15 .22 LR Replacement Barrel & Collar Kit, 16.1in Threaded 1/2-28 Black Nitride 22D7C4A CMMG AR-15 .22 LR Replacement Barrel & Collar Kit, 16.1in Threaded 1/2-28 Black Nitride 22D7C4A View Details
$233.98 $245.73
5% off
Buy Now · $233.98
TLO Outdoors
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG 9in MC 22LR Barrel And Bolt Group Kit (22D8FEF) CMMG 9in MC 22LR Barrel And Bolt Group Kit (22D8FEF) View Details
$259.99
Buy Now · $259.99
GritrSports
TLO Outdoors
Last Updated:
Oct 26, 2026 06:06 AM
CMMG AR-15 Barrel Sub-Assembly .300 Blackout 8in 4140 CM Black Nitride Pistol Gas Medium Taper 30D810A CMMG AR-15 Barrel Sub-Assembly .300 Blackout 8in 4140 CM Black Nitride Pistol Gas Medium Taper 30D810A View Details
$189.98 $195.62
3% off
Buy Now · $189.98
TLO Outdoors
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG M4 22LR 16.1in Barrel And Collar Kit (22D7C4A) CMMG M4 22LR 16.1in Barrel And Collar Kit (22D7C4A) View Details
$179.99
Buy Now · $179.99
GritrSports
TLO Outdoors
Last Updated:
Oct 26, 2026 06:06 AM
CMMG ZEROED Direct Thread HUB Mount Adapter, 5/8x24 to 1.375x24, Nitride Black 11DB016 CMMG ZEROED Direct Thread HUB Mount Adapter, 5/8x24 to 1.375x24, Nitride Black 11DB016 View Details
$90.98
Buy Now · $90.98
TLO Outdoors
TLO Outdoors
Last Updated:
Oct 26, 2026 06:06 AM
CMMG AR-15 Barrel Sub-Assembly 16.10in 5.56 NATO 4140 CrMo Black Nitride Carbine Gas 55DE10A CMMG AR-15 Barrel Sub-Assembly 16.10in 5.56 NATO 4140 CrMo Black Nitride Carbine Gas 55DE10A View Details
$211.98 $221.49
4% off
Buy Now · $211.98
TLO Outdoors
TLO Outdoors
Last Updated:
Oct 26, 2026 06:06 AM
CMMG AR-15 .300 Blackout 16.1in Multi Role 4140 Chrome Moly Nitride Barrel Sub-Assembly 30DF80A CMMG AR-15 .300 Blackout 16.1in Multi Role 4140 Chrome Moly Nitride Barrel Sub-Assembly 30DF80A View Details
$210.98 $224.95
6% off
Buy Now · $210.98
TLO Outdoors
TLO Outdoors
Last Updated:
Oct 26, 2026 06:06 AM
CMMG AR-15 Barrel Sub-Assembly, .350 Legend 16.1in 4140CM Salt Bath Nitride, 1/2x28 35D5F0A CMMG AR-15 Barrel Sub-Assembly, .350 Legend 16.1in 4140CM Salt Bath Nitride, 1/2x28 35D5F0A View Details
$211.98 $221.49
4% off
Buy Now · $211.98
TLO Outdoors
TLO Outdoors
Last Updated:
Oct 26, 2026 06:06 AM
CMMG AR-15 Barrel Sub-Assembly, 16.1in .300 Blackout 4140CM Nitride, Medium Taper 30D120A CMMG AR-15 Barrel Sub-Assembly, 16.1in .300 Blackout 4140CM Nitride, Medium Taper 30D120A View Details
$210.98 $224.95
6% off
Buy Now · $210.98
TLO Outdoors
TLO Outdoors
Last Updated:
Oct 26, 2026 06:06 AM
CMMG .22 Long Rifle Barrel & Bolt Group Kit, 16.1in Threaded 1/2-28, Nitride 22D7C6C CMMG .22 Long Rifle Barrel & Bolt Group Kit, 16.1in Threaded 1/2-28, Nitride 22D7C6C View Details
$341.98 $368.61
7% off
Buy Now · $341.98
TLO Outdoors
TLO Outdoors
Last Updated:
Oct 26, 2026 06:06 AM
CMMG 5.7x28mm AR-15 Replacement Barrel & Bolt Carrier Group Kit, 16.1in Threaded 57D0476 CMMG 5.7x28mm AR-15 Replacement Barrel & Bolt Carrier Group Kit, 16.1in Threaded 57D0476 View Details
$472.98 $517.33
9% off
Buy Now · $472.98
TLO Outdoors
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG Barrel Sub-Assm, 16.1in MT 416SS SBN, .350 Legend (35D5F0A) CMMG Barrel Sub-Assm, 16.1in MT 416SS SBN, .350 Legend (35D5F0A) View Details
$153.99
Buy Now · $153.99
GritrSports
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG Barrel And Bcg Kit, 5in 4140cm, Sbn, 57 X 28mm (57DBC33) CMMG Barrel And Bcg Kit, 5in 4140cm, Sbn, 57 X 28mm (57DBC33) View Details
$354.99
Buy Now · $354.99
GritrSports
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG 5.7x28mm 16.1in Barrel And BCG Kit (57D0476) CMMG 5.7x28mm 16.1in Barrel And BCG Kit (57D0476) View Details
$415.97
Buy Now · $415.97
GritrSports
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG 6mm ARC 16.1in Barrel Sub-Assemblies (60D100C) CMMG 6mm ARC 16.1in Barrel Sub-Assemblies (60D100C) View Details
$174.99
Buy Now · $174.99
GritrSports
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG MC 8in 300 BLK Pistol Length Barrel (30D810A) CMMG MC 8in 300 BLK Pistol Length Barrel (30D810A) View Details
$142.99
Buy Now · $142.99
GritrSports
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG MR 16in 300 BLK Carbine Length Barrel (30DF80A) CMMG MR 16in 300 BLK Carbine Length Barrel (30DF80A) View Details
$149.99
Buy Now · $149.99
GritrSports
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG M4 16in 5.56mm Carbine Length Barrel (55DE10A) CMMG M4 16in 5.56mm Carbine Length Barrel (55DE10A) View Details
$153.99
Buy Now · $153.99
GritrSports
GritrSports
Last Updated:
Oct 26, 2026 05:40 AM
CMMG MT 4.5in 22 LR Barrel and Bolt Group Kit (22D5B6E) CMMG MT 4.5in 22 LR Barrel and Bolt Group Kit (22D5B6E) View Details
$239.99
Buy Now · $239.99
GritrSports