+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Alpha Shooting Sports CHF 5.56 NATO MK18 Pistol Barrel ALP103_556NITCHF

Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, Black, 10.3in ALP103_556NITCHF
Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, Black, 10.3in ALP103_556NITCHF
Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, 10.3in, Black, ALP103-556NITCHF
Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, Black, 10.3in ALP103_556NITCHF
1 of 3 images
Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, Black, 10.3in ALP103_556NITCHF
Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, Black, 10.3in ALP103_556NITCHF
2 of 3 images
Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, Black, 10.3in ALP103_556NITCHF
Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, 10.3in, Black, ALP103-556NITCHF
3 of 3 images
Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, 10.3in, Black, ALP103-556NITCHF

Tap Tap to Zoom

Government Restriction Government Restriction
Questions & Answers
Will this work with a .750 gas block ? Expert Answer

Yes, the Alpha Shooting Sports CHF 5.56 NATO MK18 Pistol Barrel Requires a .750 gas block.

by Ethan, Gear Expert, January 13, 2025
What size gas block does this barrel use? Can you answer this question?
View All Q&A You Have a Question? Ask!
Customer Reviews
Most Recent Reviews
great accuracy by JD, Verified Owner, June 2, 2025
This barrel is exceptionally accurate. I shot it side by side with my Dd mk18 and got better groups. I know that I only have a sample size of one but I couldn’t be more impressed with this 10.3 inch barrel. Highly recommended.
Most Recent Reviews
Durable/ Accurate/ Reliable barrel for AR Pistol Build by WEthan, July 18, 2024
The Alpha Shooting Sports CHF 5.56 NATO MK18 Pistol Barrel stands out. It is exceptional, durable and accurate. Cold Hammer Forged (CHF) for longevity, it provides reliable performance with various ammo brands. This high-quality barrel is an excelle...
Read More...
Read All 2 Reviews
Color:
Black
Finish:
QPQ Nitride
Additional Features:
.077in Gas Port Diameter, 1 to 7 Twist Rate, 10.3in Length, Extended M4 Feed Ramps, Muzzle Threaded 1/2-28, Weights 1 lb 1.9 oz

Code: 33Q-ATB-C5P10PB-ALP103-556NITCHF

MPN: ALP103_556NITCHF

UPC: 859311007167

Product No Longer Available

Product Info for Alpha Shooting Sports CHF 5.56 NATO MK18 Pistol Barrel

10.3" in length and chambered in 5.56 NATOimage

1 to 7 twist rate.

QPQ Nitride finish for corossion resistance and long service life.

Carbine gas port location.

.077" gas port diameter

Machined in house from a premium cold hammer forged 4150 chrome moly blank.

Weighs 1 LB 1.9oz. pounds

Extended M4 feed ramps.

Muzzle threaded 1/2 - 28.

100% made in specialized factories.

Features of Alpha Shooting Sports CHF 5.56 NATO MK18 Pistol Barrel:

  • 10.3" in length and chambered in 5.56 NATO
  • 1 to 7 twist rate.
  • QPQ Nitride finish for corossion resistance and long service life.
  • Carbine gas port location.
  • .077" gas port diameter
  • Machined in house from a premium cold hammer forged 4150 chrome moly blank.
  • Weighs 1 LB 1.9oz
  • pounds
  • Extended M4 feed ramps.
  • Muzzle threaded 1/2 - 28.
  • 100% .

Package Contents:

  • Alpha Shooting Sports CHF 5.56 NATO MK18 Pistol Barrel

Related Products to Alpha Shooting Sports CHF 5.56 NATO MK18 Pistol Barrel

Image of TRYBE Defense Standard Handguard Barrel Nut TRYBE Defense Standard Handguard Barrel Nut (25) List: $18.99 (Save 98%) $0.44 Blazin' Deal
Image of TRYBE Defense Standard Handguard Barrel Nut TRYBE Defense Standard Handguard Barrel Nut (25) List: $18.99 (Save 98%) $0.44 Blazin' Deal
Image of TRYBE Defense Standard Handguard Barrel Nut TRYBE Defense Standard Handguard Barrel Nut (25) List: $18.99 (Save 98%) $0.44 Blazin' Deal
Image of Radian Weapons Glock 43X/48 Anchor and Pistol Magwell 3 models Radian Weapons Glock 43X/48 Anchor and Pistol Magwell (42) As Low As (Save Up to 33%) $109.99 Best Rated
Image of DFCO Kung Fu Grip Plug DFCO Kung Fu Grip Plug (22) List: $12.00 $11.99 12% Coupon
Image of DFCO Kung Fu Grip Plug DFCO Kung Fu Grip Plug (22) List: $12.00 $11.99 12% Coupon
Image of DFCO Kung Fu Grip Plug DFCO Kung Fu Grip Plug (22) List: $12.00 $11.99 12% Coupon
Image of Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer 2 models Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer (54) As Low As (Save Up to 11%) $99.95 Best Rated
Image of Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer 2 models Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer (54) As Low As (Save Up to 11%) $99.95 Best Rated
Image of Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer 2 models Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer (54) As Low As (Save Up to 11%) $99.95 Best Rated
Image of SB Tactical SBA5 5 Position Adjustable Rifle Brace 2 models SB Tactical SBA5 5 Position Adjustable Rifle Brace (171) List: $124.99 (Save 20%) $99.99 Best Rated
Image of SB Tactical SBA5 5 Position Adjustable Rifle Brace 2 models SB Tactical SBA5 5 Position Adjustable Rifle Brace (171) List: $124.99 (Save 20%) $99.99 Best Rated
Image of Atrius Development G-Lever Ambidextrous Forced Reset Safety - Geissele Specific Atrius Development G-Lever Ambidextrous Forced Reset Safety - Geissele Specific (15) List: $269.00 Add to Cart for Your
Special Price Blazin' Deal
Image of Atrius Development G-Lever Ambidextrous Forced Reset Safety - Geissele Specific Atrius Development G-Lever Ambidextrous Forced Reset Safety - Geissele Specific (15) List: $269.00 Add to Cart for Your
Special Price Blazin' Deal
Image of DFCO Kung Fu Grip, Black 13 models DFCO Kung Fu Grip, Black (128) As Low As (Save Up to 15%) $19.99 12% Coupon
Image of DFCO Kung Fu Grip, Black 13 models DFCO Kung Fu Grip, Black (128) As Low As (Save Up to 15%) $19.99 12% Coupon
Image of DFCO Kung Fu Grip, Black 13 models DFCO Kung Fu Grip, Black (128) As Low As (Save Up to 15%) $19.99 12% Coupon
Image of Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle made-in-usa-flag 4 models Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle (550) List: $54.95 (Save $5.00) $49.95 Best Rated
Image of Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle made-in-usa-flag 4 models Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle (550) List: $54.95 (Save $5.00) $49.95 Best Rated
Image of Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle made-in-usa-flag 4 models Breek Arms AR-15 Warhammer Mod2 Ambidextrous Charging Handle (550) List: $54.95 (Save $5.00) $49.95 Best Rated
Image of Superlative Arms Adjustable Bleed Off Gas Block 16 models Superlative Arms Adjustable Bleed Off Gas Block (289) List: $99.99 (Save 10%) $89.99 Up to 14% Coupon
Image of Superlative Arms Adjustable Bleed Off Gas Block 16 models Superlative Arms Adjustable Bleed Off Gas Block (289) List: $99.99 (Save 10%) $89.99 Up to 14% Coupon
Image of Superlative Arms Adjustable Bleed Off Gas Block 16 models Superlative Arms Adjustable Bleed Off Gas Block (289) List: $99.99 (Save 10%) $89.99 Up to 14% Coupon
Image of Strike Industries Strike Folding Stock Adapter Cheek Riser Strike Industries Strike Folding Stock Adapter Cheek Riser (46) List: $54.99 (Save 42%) $31.99 Best Rated

Alpha Shooting Sports CHF 5.56 NATO MK18 Pistol Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • Alpha Shooting Sports CHF 5.56 MK18 Pistol Barrel, 10.3in, Black, ALP103-556NITCHF , MPN: ALP103_556NITCHF , UPC: 859311007167 , Code: 33Q-ATB-C5P10PB-ALP103-556NITCHF
Compare (0)
1 item has been added
Add at least two items to compare
Last updated 2026-07-07 UTC.