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Answered

barrel

Asked 07/10/2019 04:48 PM CT
by irv g in Long Gun

Diamondback Firearms AR-15 7.62x39mm Semi Auto Rifle
4150 or 4140?

2 Answers

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07/10/2019 05:01 PM CT
by James G - Lifetime Points: 92028
Chosen as Best Answer

Irv. this rifle has a 16" 4140 Chrome-Moly Barrel with a 1:9.5" Twist Rate as well.

07/10/2019 07:56 PM CT
by Michael W - Lifetime Points: 4192

Irv, 4140 steel in this barrel. Hard enough with 40% carbon steel content to last over 50,000 rounds no problem.

Best Answer

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07/10/2019 05:01 PM CT by James G Best

Irv. this rifle has a 16" 4140 Chrome-Moly Barrel with a 1:9.5" Twist Rate as well.

07/10/2019 07:56 PM CT by Michael W

Irv, 4140 steel in this barrel. Hard enough with 40% carbon steel content to last over 50,000 rounds no problem.

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