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Cal. Penal Code § 16740 (2026)

✓ current as of May 2026
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As used in this part, “large-capacity magazine” means any ammunition feeding device with the capacity to accept more than 10 rounds, but shall not be construed to include any of the following:

(a)A feeding device that has been permanently altered so that it cannot accommodate more than 10 rounds.

(b)A .22 caliber tube ammunition feeding device.

(c)A tubular magazine that is contained in a lever-action firearm.

Notes of Decisions
Cited in 16 cases (7 in the last 5 years), 2017–2025 · leading case: Virginia Duncan v. Rob Bonta, 19 F.4th 1087 (9th Cir. 2021).
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Virginia Duncan v. Rob Bonta, 19 F.4th 1087 (9th Cir. 2021). · cites it 4× “, Cal. Penal Code § 16740 ; 18 U.S.C. § 921 (a)(31)(A) (1994); Conn.”
Virginia Duncan v. Rob Bonta, 133 F.4th 852 (9th Cir. 2025). · cites it 4× “, Cal. Penal Code § 16740 ; Conn. Gen. Stat.”
Virginia Duncan v. Xavier Becerra, 970 F.3d 1133 (9th Cir. 2020). · cites it 2× “Penal Code § 32310 )); see also Cal. Penal Code § 16740 (defining what constitutes an LCM).”
Ass'n of N.J. Rifle & Pistol Clubs, Inc. v. Attorney Gen. N.J., 910 F.3d 106 (3rd Cir. 2018). “And we could then find whether the government has met its burden to justify this law. But it has not yet done that.”
Virginia Duncan v. Rob Bonta, 83 F.4th 803 (9th Cir. 2023). · cites it 2× “Cal. Penal Code § 16740 . Plaintiffs—five individuals and the California Rifle & Pistol Association, Inc.”
United States v. Trumbull, 114 F.4th 1114 (9th Cir. 2024). · cites it 2× “5 Cal. Penal Code § 16740 ; Conn. Gen. Stat.”
Wiese v. Becerra, 306 F. Supp. 3d 1190 (E.D. Cal. 2018). · cites it 2× “Plaintiffs have twenty days from the date this Order is signed to file a Third Amended Complaint, if they can do so consistent with this Order.”
United States v. Francisco Lucas, Jr., 101 F.4th 1158 (9th Cir. 2024). “3 Application of the heightened base offense level increased Lucas’s advisory Guidelines range from 33–41 months to 63–78 months.”
United States v. Nahsiem McIntosh, 124 F.4th 199 (3rd Cir. 2024). · cites it 2× “8 Currently, fourteen states and the District of Columbia regulate “large capacity” magazines in some capacity.”
Duncan v. Becerra, 366 F. Supp. 3d 1131 (S.D. Cal. 2019). “Cal. Penal Code § 16740 (2019) (West). See e.”
Wiese v. Becerra, 263 F. Supp. 3d 986 (E.D. Cal. 2017). “Large capacity magazines are defined under California Penal Code § 16740 as any ammunition-feeding device with the capacity to accept more than ten rounds.”
People v. Lavoie, 240 Cal. Rptr. 3d 825 (Cal. Ct. App. 5th 2018). “(a)(1) ); and (3) receiving a large-capacity magazine ( Pen. Code, §§ 16740, 32310, subd. (a) ). In a bifurcated proceeding, after waiving a jury trial, defendant admitted two "strike" priors ( Pen.”
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